Home / 157,977,407.90-218,027,237.42-91,900,691.17

Finding the Fourth Proportional to 157,977,407.90, 218,027,237.42 and 91,900,691.17

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Solution

The fourth proportional to 157,977,407.90, 218,027,237.42 and 91,900,691.17 is: 126,833,666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,977,407.90 : 218,027,237.42 = 91,900,691.17 : x
  2. Step 2: Convert to fraction form
    157,977,407.90/218,027,237.42 = 91,900,691.17/x
  3. Step 3: Cross multiply
    157,977,407.90x = 218,027,237.42 × 91,900,691.17
  4. Step 4: Simplify right side
    157,977,407.90x = 20,036,853,812,468,372
  5. Step 5: Solve for x
    x = 20,036,853,812,468,372/157,977,407.90
  6. Step 6: Final answer
    x = 126,833,666.15

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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.