Home / 140,978,275.29-211,467,122.11-79,539,543.83

Finding the Fourth Proportional to 140,978,275.29, 211,467,122.11 and 79,539,543.83

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Solution

The fourth proportional to 140,978,275.29, 211,467,122.11 and 79,539,543.83 is: 119,309,151.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,978,275.29 : 211,467,122.11 = 79,539,543.83 : x
  2. Step 2: Convert to fraction form
    140,978,275.29/211,467,122.11 = 79,539,543.83/x
  3. Step 3: Cross multiply
    140,978,275.29x = 211,467,122.11 × 79,539,543.83
  4. Step 4: Simplify right side
    140,978,275.29x = 16,819,998,427,672,308
  5. Step 5: Solve for x
    x = 16,819,998,427,672,308/140,978,275.29
  6. Step 6: Final answer
    x = 119,309,151.66

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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.