Home / 10,370,416.80-15,555,625.20-8,690,800.80

Finding the Fourth Proportional to 10,370,416.80, 15,555,625.20 and 8,690,800.80

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Solution

The fourth proportional to 10,370,416.80, 15,555,625.20 and 8,690,800.80 is: 13,036,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,370,416.80 : 15,555,625.20 = 8,690,800.80 : x
  2. Step 2: Convert to fraction form
    10,370,416.80/15,555,625.20 = 8,690,800.80/x
  3. Step 3: Cross multiply
    10,370,416.80x = 15,555,625.20 × 8,690,800.80
  4. Step 4: Simplify right side
    10,370,416.80x = 135,190,839,932,660.17
  5. Step 5: Solve for x
    x = 135,190,839,932,660.17/10,370,416.80
  6. Step 6: Final answer
    x = 13,036,201.20

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Double scale
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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.