Home / 8,143,531.20-12,215,286.45-2,078,263.04

Finding the Fourth Proportional to 8,143,531.20, 12,215,286.45 and 2,078,263.04

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Solution

The fourth proportional to 8,143,531.20, 12,215,286.45 and 2,078,263.04 is: 3,117,391.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143,531.20 : 12,215,286.45 = 2,078,263.04 : x
  2. Step 2: Convert to fraction form
    8,143,531.20/12,215,286.45 = 2,078,263.04/x
  3. Step 3: Cross multiply
    8,143,531.20x = 12,215,286.45 × 2,078,263.04
  4. Step 4: Simplify right side
    8,143,531.20x = 25,386,578,290,971.38
  5. Step 5: Solve for x
    x = 25,386,578,290,971.38/8,143,531.20
  6. Step 6: Final answer
    x = 3,117,391.91

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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.