Home / 131,690,919.01-181,720,223.78-72,942,607.59

Finding the Fourth Proportional to 131,690,919.01, 181,720,223.78 and 72,942,607.59

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Solution

The fourth proportional to 131,690,919.01, 181,720,223.78 and 72,942,607.59 is: 100,653,462.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,690,919.01 : 181,720,223.78 = 72,942,607.59 : x
  2. Step 2: Convert to fraction form
    131,690,919.01/181,720,223.78 = 72,942,607.59/x
  3. Step 3: Cross multiply
    131,690,919.01x = 181,720,223.78 × 72,942,607.59
  4. Step 4: Simplify right side
    131,690,919.01x = 13,255,146,974,351,528
  5. Step 5: Solve for x
    x = 13,255,146,974,351,528/131,690,919.01
  6. Step 6: Final answer
    x = 100,653,462.47

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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.