Home / 8,087,647.80-12,131,471.70-7,471,788.60

Finding the Fourth Proportional to 8,087,647.80, 12,131,471.70 and 7,471,788.60

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Solution

The fourth proportional to 8,087,647.80, 12,131,471.70 and 7,471,788.60 is: 11,207,682.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087,647.80 : 12,131,471.70 = 7,471,788.60 : x
  2. Step 2: Convert to fraction form
    8,087,647.80/12,131,471.70 = 7,471,788.60/x
  3. Step 3: Cross multiply
    8,087,647.80x = 12,131,471.70 × 7,471,788.60
  4. Step 4: Simplify right side
    8,087,647.80x = 90,643,791,949,282.61
  5. Step 5: Solve for x
    x = 90,643,791,949,282.61/8,087,647.80
  6. Step 6: Final answer
    x = 11,207,682.90

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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.