Home / 99,635,019.88-149,472,704.76-42,127,198.78

Finding the Fourth Proportional to 99,635,019.88, 149,472,704.76 and 42,127,198.78

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Solution

The fourth proportional to 99,635,019.88, 149,472,704.76 and 42,127,198.78 is: 63,199,328.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,635,019.88 : 149,472,704.76 = 42,127,198.78 : x
  2. Step 2: Convert to fraction form
    99,635,019.88/149,472,704.76 = 42,127,198.78/x
  3. Step 3: Cross multiply
    99,635,019.88x = 149,472,704.76 × 42,127,198.78
  4. Step 4: Simplify right side
    99,635,019.88x = 6,296,866,345,608,772
  5. Step 5: Solve for x
    x = 6,296,866,345,608,772/99,635,019.88
  6. Step 6: Final answer
    x = 63,199,328.44

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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.