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Finding the Fourth Proportional to 73,778,515.80, 110,667,773.70 and 72,770,746.20

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Solution

The fourth proportional to 73,778,515.80, 110,667,773.70 and 72,770,746.20 is: 109,156,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,778,515.80 : 110,667,773.70 = 72,770,746.20 : x
  2. Step 2: Convert to fraction form
    73,778,515.80/110,667,773.70 = 72,770,746.20/x
  3. Step 3: Cross multiply
    73,778,515.80x = 110,667,773.70 × 72,770,746.20
  4. Step 4: Simplify right side
    73,778,515.80x = 8,053,376,472,441,735
  5. Step 5: Solve for x
    x = 8,053,376,472,441,735/73,778,515.80
  6. Step 6: Final answer
    x = 109,156,119.30

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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.