Home / 89,128,177.07-123,018,763.97-54,340,049.21

Finding the Fourth Proportional to 89,128,177.07, 123,018,763.97 and 54,340,049.21

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Solution

The fourth proportional to 89,128,177.07, 123,018,763.97 and 54,340,049.21 is: 75,002,607.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,128,177.07 : 123,018,763.97 = 54,340,049.21 : x
  2. Step 2: Convert to fraction form
    89,128,177.07/123,018,763.97 = 54,340,049.21/x
  3. Step 3: Cross multiply
    89,128,177.07x = 123,018,763.97 × 54,340,049.21
  4. Step 4: Simplify right side
    89,128,177.07x = 6,684,845,687,403,931
  5. Step 5: Solve for x
    x = 6,684,845,687,403,931/89,128,177.07
  6. Step 6: Final answer
    x = 75,002,607.57

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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.