Home / 311,827,939,995.69-430,311,421,109.02-176,494,214,522.25

Finding the Fourth Proportional to 311,827,939,995.69, 430,311,421,109.02 and 176,494,214,522.25

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Solution

The fourth proportional to 311,827,939,995.69, 430,311,421,109.02 and 176,494,214,522.25 is: 243,555,713,030.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,827,939,995.69 : 430,311,421,109.02 = 176,494,214,522.25 : x
  2. Step 2: Convert to fraction form
    311,827,939,995.69/430,311,421,109.02 = 176,494,214,522.25/x
  3. Step 3: Cross multiply
    311,827,939,995.69x = 430,311,421,109.02 × 176,494,214,522.25
  4. Step 4: Simplify right side
    311,827,939,995.69x = 75,947,476,268,589,640,581,120
  5. Step 5: Solve for x
    x = 75,947,476,268,589,640,581,120/311,827,939,995.69
  6. Step 6: Final answer
    x = 243,555,713,030.84

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Half scale
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Double scale
Find fourth proportional to 311,827,939,996.69, 430,311,421,110.40 and 176,494,214,523.25
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.