Home / 98,713,671.29-136,366,763.15-78,841,344.72

Finding the Fourth Proportional to 98,713,671.29, 136,366,763.15 and 78,841,344.72

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Solution

The fourth proportional to 98,713,671.29, 136,366,763.15 and 78,841,344.72 is: 108,914,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,713,671.29 : 136,366,763.15 = 78,841,344.72 : x
  2. Step 2: Convert to fraction form
    98,713,671.29/136,366,763.15 = 78,841,344.72/x
  3. Step 3: Cross multiply
    98,713,671.29x = 136,366,763.15 × 78,841,344.72
  4. Step 4: Simplify right side
    98,713,671.29x = 10,751,338,981,859,744
  5. Step 5: Solve for x
    x = 10,751,338,981,859,744/98,713,671.29
  6. Step 6: Final answer
    x = 108,914,386.85

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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.