Home / 12,387,591.40-18,581,387.10-8,082,919.30

Finding the Fourth Proportional to 12,387,591.40, 18,581,387.10 and 8,082,919.30

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Solution

The fourth proportional to 12,387,591.40, 18,581,387.10 and 8,082,919.30 is: 12,124,378.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,591.40 : 18,581,387.10 = 8,082,919.30 : x
  2. Step 2: Convert to fraction form
    12,387,591.40/18,581,387.10 = 8,082,919.30/x
  3. Step 3: Cross multiply
    12,387,591.40x = 18,581,387.10 × 8,082,919.30
  4. Step 4: Simplify right side
    12,387,591.40x = 150,191,852,411,361.03
  5. Step 5: Solve for x
    x = 150,191,852,411,361.03/12,387,591.40
  6. Step 6: Final answer
    x = 12,124,378.95

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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.