Home / 1,443,214,074.51-1,991,635,423.02-783,164,352.51

Finding the Fourth Proportional to 1,443,214,074.51, 1,991,635,423.02 and 783,164,352.51

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Solution

The fourth proportional to 1,443,214,074.51, 1,991,635,423.02 and 783,164,352.51 is: 1,080,766,806.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,214,074.51 : 1,991,635,423.02 = 783,164,352.51 : x
  2. Step 2: Convert to fraction form
    1,443,214,074.51/1,991,635,423.02 = 783,164,352.51/x
  3. Step 3: Cross multiply
    1,443,214,074.51x = 1,991,635,423.02 × 783,164,352.51
  4. Step 4: Simplify right side
    1,443,214,074.51x = 1,559,777,866,505,438,208
  5. Step 5: Solve for x
    x = 1,559,777,866,505,438,208/1,443,214,074.51
  6. Step 6: Final answer
    x = 1,080,766,806.57

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Double scale
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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.