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Finding the Fourth Proportional to 15,006,695.45, 20,709,474.84 and 8,811,879.14

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Solution

The fourth proportional to 15,006,695.45, 20,709,474.84 and 8,811,879.14 is: 12,160,531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,006,695.45 : 20,709,474.84 = 8,811,879.14 : x
  2. Step 2: Convert to fraction form
    15,006,695.45/20,709,474.84 = 8,811,879.14/x
  3. Step 3: Cross multiply
    15,006,695.45x = 20,709,474.84 × 8,811,879.14
  4. Step 4: Simplify right side
    15,006,695.45x = 182,489,389,298,891.47
  5. Step 5: Solve for x
    x = 182,489,389,298,891.47/15,006,695.45
  6. Step 6: Final answer
    x = 12,160,531.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.