Home / 28,808,761.15-39,755,531.73-15,755,979.70

Finding the Fourth Proportional to 28,808,761.15, 39,755,531.73 and 15,755,979.70

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Solution

The fourth proportional to 28,808,761.15, 39,755,531.73 and 15,755,979.70 is: 21,742,946.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808,761.15 : 39,755,531.73 = 15,755,979.70 : x
  2. Step 2: Convert to fraction form
    28,808,761.15/39,755,531.73 = 15,755,979.70/x
  3. Step 3: Cross multiply
    28,808,761.15x = 39,755,531.73 × 15,755,979.70
  4. Step 4: Simplify right side
    28,808,761.15x = 626,387,350,900,585.75
  5. Step 5: Solve for x
    x = 626,387,350,900,585.75/28,808,761.15
  6. Step 6: Final answer
    x = 21,742,946.45

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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.