Home / 8,259,690.62-12,389,780.15-3,942,195.72

Finding the Fourth Proportional to 8,259,690.62, 12,389,780.15 and 3,942,195.72

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Solution

The fourth proportional to 8,259,690.62, 12,389,780.15 and 3,942,195.72 is: 5,913,410.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259,690.62 : 12,389,780.15 = 3,942,195.72 : x
  2. Step 2: Convert to fraction form
    8,259,690.62/12,389,780.15 = 3,942,195.72/x
  3. Step 3: Cross multiply
    8,259,690.62x = 12,389,780.15 × 3,942,195.72
  4. Step 4: Simplify right side
    8,259,690.62x = 48,842,938,227,681.54
  5. Step 5: Solve for x
    x = 48,842,938,227,681.54/8,259,690.62
  6. Step 6: Final answer
    x = 5,913,410.13

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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.