Home / 8,193,781.60-12,290,672.40-7,381,967.20

Finding the Fourth Proportional to 8,193,781.60, 12,290,672.40 and 7,381,967.20

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Solution

The fourth proportional to 8,193,781.60, 12,290,672.40 and 7,381,967.20 is: 11,072,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,193,781.60 : 12,290,672.40 = 7,381,967.20 : x
  2. Step 2: Convert to fraction form
    8,193,781.60/12,290,672.40 = 7,381,967.20/x
  3. Step 3: Cross multiply
    8,193,781.60x = 12,290,672.40 × 7,381,967.20
  4. Step 4: Simplify right side
    8,193,781.60x = 90,729,340,522,745.28
  5. Step 5: Solve for x
    x = 90,729,340,522,745.28/8,193,781.60
  6. Step 6: Final answer
    x = 11,072,950.80

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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.