Home / 12,491,602.80-18,737,404.20-7,452,754.80

Finding the Fourth Proportional to 12,491,602.80, 18,737,404.20 and 7,452,754.80

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Solution

The fourth proportional to 12,491,602.80, 18,737,404.20 and 7,452,754.80 is: 11,179,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491,602.80 : 18,737,404.20 = 7,452,754.80 : x
  2. Step 2: Convert to fraction form
    12,491,602.80/18,737,404.20 = 7,452,754.80/x
  3. Step 3: Cross multiply
    12,491,602.80x = 18,737,404.20 × 7,452,754.80
  4. Step 4: Simplify right side
    12,491,602.80x = 139,645,279,091,090.16
  5. Step 5: Solve for x
    x = 139,645,279,091,090.16/12,491,602.80
  6. Step 6: Final answer
    x = 11,179,132.20

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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.