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Finding the Fourth Proportional to 73,103,652.80, 109,655,479.20 and 30,003,787.70

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Solution

The fourth proportional to 73,103,652.80, 109,655,479.20 and 30,003,787.70 is: 45,005,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,103,652.80 : 109,655,479.20 = 30,003,787.70 : x
  2. Step 2: Convert to fraction form
    73,103,652.80/109,655,479.20 = 30,003,787.70/x
  3. Step 3: Cross multiply
    73,103,652.80x = 109,655,479.20 × 30,003,787.70
  4. Step 4: Simplify right side
    73,103,652.80x = 3,290,079,718,058,566
  5. Step 5: Solve for x
    x = 3,290,079,718,058,566/73,103,652.80
  6. Step 6: Final answer
    x = 45,005,681.55

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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.