Home / 8,178,490.80-12,267,736.20-8,122,503.60

Finding the Fourth Proportional to 8,178,490.80, 12,267,736.20 and 8,122,503.60

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Solution

The fourth proportional to 8,178,490.80, 12,267,736.20 and 8,122,503.60 is: 12,183,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178,490.80 : 12,267,736.20 = 8,122,503.60 : x
  2. Step 2: Convert to fraction form
    8,178,490.80/12,267,736.20 = 8,122,503.60/x
  3. Step 3: Cross multiply
    8,178,490.80x = 12,267,736.20 × 8,122,503.60
  4. Step 4: Simplify right side
    8,178,490.80x = 99,644,731,448,350.31
  5. Step 5: Solve for x
    x = 99,644,731,448,350.31/8,178,490.80
  6. Step 6: Final answer
    x = 12,183,755.40

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Similar ratio
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1.5x scale

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.