Home / 78,317,562.58-108,071,909.24-45,279,940.78

Finding the Fourth Proportional to 78,317,562.58, 108,071,909.24 and 45,279,940.78

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Solution

The fourth proportional to 78,317,562.58, 108,071,909.24 and 45,279,940.78 is: 62,482,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,317,562.58 : 108,071,909.24 = 45,279,940.78 : x
  2. Step 2: Convert to fraction form
    78,317,562.58/108,071,909.24 = 45,279,940.78/x
  3. Step 3: Cross multiply
    78,317,562.58x = 108,071,909.24 × 45,279,940.78
  4. Step 4: Simplify right side
    78,317,562.58x = 4,893,489,650,368,735
  5. Step 5: Solve for x
    x = 4,893,489,650,368,735/78,317,562.58
  6. Step 6: Final answer
    x = 62,482,660.20

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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.