Home / 20,480,478.32-30,720,707.76-6,103,179.20

Finding the Fourth Proportional to 20,480,478.32, 30,720,707.76 and 6,103,179.20

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Solution

The fourth proportional to 20,480,478.32, 30,720,707.76 and 6,103,179.20 is: 9,154,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480,478.32 : 30,720,707.76 = 6,103,179.20 : x
  2. Step 2: Convert to fraction form
    20,480,478.32/30,720,707.76 = 6,103,179.20/x
  3. Step 3: Cross multiply
    20,480,478.32x = 30,720,707.76 × 6,103,179.20
  4. Step 4: Simplify right side
    20,480,478.32x = 187,493,984,610,110.59
  5. Step 5: Solve for x
    x = 187,493,984,610,110.59/20,480,478.32
  6. Step 6: Final answer
    x = 9,154,765.90

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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.