Home / 121,535,159.20-167,718,507.20-65,780,569.92

Finding the Fourth Proportional to 121,535,159.20, 167,718,507.20 and 65,780,569.92

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Solution

The fourth proportional to 121,535,159.20, 167,718,507.20 and 65,780,569.92 is: 90,777,179.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,535,159.20 : 167,718,507.20 = 65,780,569.92 : x
  2. Step 2: Convert to fraction form
    121,535,159.20/167,718,507.20 = 65,780,569.92/x
  3. Step 3: Cross multiply
    121,535,159.20x = 167,718,507.20 × 65,780,569.92
  4. Step 4: Simplify right side
    121,535,159.20x = 11,032,618,989,747,622
  5. Step 5: Solve for x
    x = 11,032,618,989,747,622/121,535,159.20
  6. Step 6: Final answer
    x = 90,777,179.73

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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.