Home / 78,377,780.21-117,552,922.90-29,858,545.52

Finding the Fourth Proportional to 78,377,780.21, 117,552,922.90 and 29,858,545.52

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Solution

The fourth proportional to 78,377,780.21, 117,552,922.90 and 29,858,545.52 is: 44,782,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,377,780.21 : 117,552,922.90 = 29,858,545.52 : x
  2. Step 2: Convert to fraction form
    78,377,780.21/117,552,922.90 = 29,858,545.52/x
  3. Step 3: Cross multiply
    78,377,780.21x = 117,552,922.90 × 29,858,545.52
  4. Step 4: Simplify right side
    78,377,780.21x = 3,509,959,298,681,643
  5. Step 5: Solve for x
    x = 3,509,959,298,681,643/78,377,780.21
  6. Step 6: Final answer
    x = 44,782,581.10

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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.