Home / 20,258,374.92-30,390,178.17-9,325,927.78

Finding the Fourth Proportional to 20,258,374.92, 30,390,178.17 and 9,325,927.78

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Solution

The fourth proportional to 20,258,374.92, 30,390,178.17 and 9,325,927.78 is: 13,990,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258,374.92 : 30,390,178.17 = 9,325,927.78 : x
  2. Step 2: Convert to fraction form
    20,258,374.92/30,390,178.17 = 9,325,927.78/x
  3. Step 3: Cross multiply
    20,258,374.92x = 30,390,178.17 × 9,325,927.78
  4. Step 4: Simplify right side
    20,258,374.92x = 283,416,606,834,752.56
  5. Step 5: Solve for x
    x = 283,416,606,834,752.56/20,258,374.92
  6. Step 6: Final answer
    x = 13,990,095.85

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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.