Home / 8,143,531.70-12,215,287.20-2,078,263.54

Finding the Fourth Proportional to 8,143,531.70, 12,215,287.20 and 2,078,263.54

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Solution

The fourth proportional to 8,143,531.70, 12,215,287.20 and 2,078,263.54 is: 3,117,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143,531.70 : 12,215,287.20 = 2,078,263.54 : x
  2. Step 2: Convert to fraction form
    8,143,531.70/12,215,287.20 = 2,078,263.54/x
  3. Step 3: Cross multiply
    8,143,531.70x = 12,215,287.20 × 2,078,263.54
  4. Step 4: Simplify right side
    8,143,531.70x = 25,386,585,957,312.25
  5. Step 5: Solve for x
    x = 25,386,585,957,312.25/8,143,531.70
  6. Step 6: Final answer
    x = 3,117,392.66

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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.