Home / 28,124,982.20-38,818,545.30-17,115,278.84

Finding the Fourth Proportional to 28,124,982.20, 38,818,545.30 and 17,115,278.84

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Solution

The fourth proportional to 28,124,982.20, 38,818,545.30 and 17,115,278.84 is: 23,622,778.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124,982.20 : 38,818,545.30 = 17,115,278.84 : x
  2. Step 2: Convert to fraction form
    28,124,982.20/38,818,545.30 = 17,115,278.84/x
  3. Step 3: Cross multiply
    28,124,982.20x = 38,818,545.30 × 17,115,278.84
  4. Step 4: Simplify right side
    28,124,982.20x = 664,390,226,924,148.25
  5. Step 5: Solve for x
    x = 664,390,226,924,148.25/28,124,982.20
  6. Step 6: Final answer
    x = 23,622,778.57

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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.