Home / 131,789,959.97-181,866,207.17-72,249,220.20

Finding the Fourth Proportional to 131,789,959.97, 181,866,207.17 and 72,249,220.20

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Solution

The fourth proportional to 131,789,959.97, 181,866,207.17 and 72,249,220.20 is: 99,701,765.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,789,959.97 : 181,866,207.17 = 72,249,220.20 : x
  2. Step 2: Convert to fraction form
    131,789,959.97/181,866,207.17 = 72,249,220.20/x
  3. Step 3: Cross multiply
    131,789,959.97x = 181,866,207.17 × 72,249,220.20
  4. Step 4: Simplify right side
    131,789,959.97x = 13,139,691,648,581,288
  5. Step 5: Solve for x
    x = 13,139,691,648,581,288/131,789,959.97
  6. Step 6: Final answer
    x = 99,701,765.23

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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.