Home / 129,229,163.76-193,845,433.32-42,967,569.36

Finding the Fourth Proportional to 129,229,163.76, 193,845,433.32 and 42,967,569.36

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Solution

The fourth proportional to 129,229,163.76, 193,845,433.32 and 42,967,569.36 is: 64,451,915.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,229,163.76 : 193,845,433.32 = 42,967,569.36 : x
  2. Step 2: Convert to fraction form
    129,229,163.76/193,845,433.32 = 42,967,569.36/x
  3. Step 3: Cross multiply
    129,229,163.76x = 193,845,433.32 × 42,967,569.36
  4. Step 4: Simplify right side
    129,229,163.76x = 8,329,067,101,296,355
  5. Step 5: Solve for x
    x = 8,329,067,101,296,355/129,229,163.76
  6. Step 6: Final answer
    x = 64,451,915.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.