Home / 12,942,100.20-17,860,472.17-7,141,255.59

Finding the Fourth Proportional to 12,942,100.20, 17,860,472.17 and 7,141,255.59

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Solution

The fourth proportional to 12,942,100.20, 17,860,472.17 and 7,141,255.59 is: 9,855,139.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,100.20 : 17,860,472.17 = 7,141,255.59 : x
  2. Step 2: Convert to fraction form
    12,942,100.20/17,860,472.17 = 7,141,255.59/x
  3. Step 3: Cross multiply
    12,942,100.20x = 17,860,472.17 × 7,141,255.59
  4. Step 4: Simplify right side
    12,942,100.20x = 127,546,196,706,198.80
  5. Step 5: Solve for x
    x = 127,546,196,706,198.80/12,942,100.20
  6. Step 6: Final answer
    x = 9,855,139.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.