Home / 20,781,372.46-28,677,061.47-11,488,388.35

Finding the Fourth Proportional to 20,781,372.46, 28,677,061.47 and 11,488,388.35

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Solution

The fourth proportional to 20,781,372.46, 28,677,061.47 and 11,488,388.35 is: 15,853,294.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,781,372.46 : 28,677,061.47 = 11,488,388.35 : x
  2. Step 2: Convert to fraction form
    20,781,372.46/28,677,061.47 = 11,488,388.35/x
  3. Step 3: Cross multiply
    20,781,372.46x = 28,677,061.47 × 11,488,388.35
  4. Step 4: Simplify right side
    20,781,372.46x = 329,453,218,904,181.88
  5. Step 5: Solve for x
    x = 329,453,218,904,181.88/20,781,372.46
  6. Step 6: Final answer
    x = 15,853,294.56

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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.