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Finding the Fourth Proportional to 318,766,471.88, 478,102,118.70 and 88,711,567.88

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Solution

The fourth proportional to 318,766,471.88, 478,102,118.70 and 88,711,567.88 is: 133,054,107.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,766,471.88 : 478,102,118.70 = 88,711,567.88 : x
  2. Step 2: Convert to fraction form
    318,766,471.88/478,102,118.70 = 88,711,567.88/x
  3. Step 3: Cross multiply
    318,766,471.88x = 478,102,118.70 × 88,711,567.88
  4. Step 4: Simplify right side
    318,766,471.88x = 42,413,188,556,626,864
  5. Step 5: Solve for x
    x = 42,413,188,556,626,864/318,766,471.88
  6. Step 6: Final answer
    x = 133,054,107.94

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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.