Home / 39,930,143.07-55,103,597.01-21,595,428.57

Finding the Fourth Proportional to 39,930,143.07, 55,103,597.01 and 21,595,428.57

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Solution

The fourth proportional to 39,930,143.07, 55,103,597.01 and 21,595,428.57 is: 29,801,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930,143.07 : 55,103,597.01 = 21,595,428.57 : x
  2. Step 2: Convert to fraction form
    39,930,143.07/55,103,597.01 = 21,595,428.57/x
  3. Step 3: Cross multiply
    39,930,143.07x = 55,103,597.01 × 21,595,428.57
  4. Step 4: Simplify right side
    39,930,143.07x = 1,189,985,793,179,520.50
  5. Step 5: Solve for x
    x = 1,189,985,793,179,520.50/39,930,143.07
  6. Step 6: Final answer
    x = 29,801,691.20

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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.