Home / 20,710,575.82-28,580,626.12-11,543,021.74

Finding the Fourth Proportional to 20,710,575.82, 28,580,626.12 and 11,543,021.74

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Solution

The fourth proportional to 20,710,575.82, 28,580,626.12 and 11,543,021.74 is: 15,929,387.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,575.82 : 28,580,626.12 = 11,543,021.74 : x
  2. Step 2: Convert to fraction form
    20,710,575.82/28,580,626.12 = 11,543,021.74/x
  3. Step 3: Cross multiply
    20,710,575.82x = 28,580,626.12 × 11,543,021.74
  4. Step 4: Simplify right side
    20,710,575.82x = 329,906,788,474,211.12
  5. Step 5: Solve for x
    x = 329,906,788,474,211.12/20,710,575.82
  6. Step 6: Final answer
    x = 15,929,387.55

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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.