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Finding the Fourth Proportional to 28,193,473.71, 42,290,247.65 and 7,723,375.25

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Solution

The fourth proportional to 28,193,473.71, 42,290,247.65 and 7,723,375.25 is: 11,585,073.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193,473.71 : 42,290,247.65 = 7,723,375.25 : x
  2. Step 2: Convert to fraction form
    28,193,473.71/42,290,247.65 = 7,723,375.25/x
  3. Step 3: Cross multiply
    28,193,473.71x = 42,290,247.65 × 7,723,375.25
  4. Step 4: Simplify right side
    28,193,473.71x = 326,623,451,766,312.56
  5. Step 5: Solve for x
    x = 326,623,451,766,312.56/28,193,473.71
  6. Step 6: Final answer
    x = 11,585,073.03

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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.