Home / 13,478,863.30-20,218,294.95-8,377,029.70

Finding the Fourth Proportional to 13,478,863.30, 20,218,294.95 and 8,377,029.70

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Solution

The fourth proportional to 13,478,863.30, 20,218,294.95 and 8,377,029.70 is: 12,565,544.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478,863.30 : 20,218,294.95 = 8,377,029.70 : x
  2. Step 2: Convert to fraction form
    13,478,863.30/20,218,294.95 = 8,377,029.70/x
  3. Step 3: Cross multiply
    13,478,863.30x = 20,218,294.95 × 8,377,029.70
  4. Step 4: Simplify right side
    13,478,863.30x = 169,369,257,279,510
  5. Step 5: Solve for x
    x = 169,369,257,279,510/13,478,863.30
  6. Step 6: Final answer
    x = 12,565,544.55

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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.