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Finding the Fourth Proportional to 66,597,834.72, 99,894,471.12 and 28,234,644.96

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Solution

The fourth proportional to 66,597,834.72, 99,894,471.12 and 28,234,644.96 is: 42,351,000.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,597,834.72 : 99,894,471.12 = 28,234,644.96 : x
  2. Step 2: Convert to fraction form
    66,597,834.72/99,894,471.12 = 28,234,644.96/x
  3. Step 3: Cross multiply
    66,597,834.72x = 99,894,471.12 × 28,234,644.96
  4. Step 4: Simplify right side
    66,597,834.72x = 2,820,484,925,540,174
  5. Step 5: Solve for x
    x = 2,820,484,925,540,174/66,597,834.72
  6. Step 6: Final answer
    x = 42,351,000.41

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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.