Home / 1,244,208,086.70-1,866,312,130.05-426,048,470.70

Finding the Fourth Proportional to 1,244,208,086.70, 1,866,312,130.05 and 426,048,470.70

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Solution

The fourth proportional to 1,244,208,086.70, 1,866,312,130.05 and 426,048,470.70 is: 639,072,706.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,208,086.70 : 1,866,312,130.05 = 426,048,470.70 : x
  2. Step 2: Convert to fraction form
    1,244,208,086.70/1,866,312,130.05 = 426,048,470.70/x
  3. Step 3: Cross multiply
    1,244,208,086.70x = 1,866,312,130.05 × 426,048,470.70
  4. Step 4: Simplify right side
    1,244,208,086.70x = 795,139,428,856,662,016
  5. Step 5: Solve for x
    x = 795,139,428,856,662,016/1,244,208,086.70
  6. Step 6: Final answer
    x = 639,072,706.05

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.