Home / 20,315,921.08-30,478,397.78-9,527,471.95

Finding the Fourth Proportional to 20,315,921.08, 30,478,397.78 and 9,527,471.95

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Solution

The fourth proportional to 20,315,921.08, 30,478,397.78 and 9,527,471.95 is: 14,293,325.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,315,921.08 : 30,478,397.78 = 9,527,471.95 : x
  2. Step 2: Convert to fraction form
    20,315,921.08/30,478,397.78 = 9,527,471.95/x
  3. Step 3: Cross multiply
    20,315,921.08x = 30,478,397.78 × 9,527,471.95
  4. Step 4: Simplify right side
    20,315,921.08x = 290,382,079,929,892.25
  5. Step 5: Solve for x
    x = 290,382,079,929,892.25/20,315,921.08
  6. Step 6: Final answer
    x = 14,293,325.85

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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.