Home / 143,932,845.12-215,834,357.52-71,121,238.80

Finding the Fourth Proportional to 143,932,845.12, 215,834,357.52 and 71,121,238.80

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Solution

The fourth proportional to 143,932,845.12, 215,834,357.52 and 71,121,238.80 is: 106,649,784.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,932,845.12 : 215,834,357.52 = 71,121,238.80 : x
  2. Step 2: Convert to fraction form
    143,932,845.12/215,834,357.52 = 71,121,238.80/x
  3. Step 3: Cross multiply
    143,932,845.12x = 215,834,357.52 × 71,121,238.80
  4. Step 4: Simplify right side
    143,932,845.12x = 15,350,406,882,424,496
  5. Step 5: Solve for x
    x = 15,350,406,882,424,496/143,932,845.12
  6. Step 6: Final answer
    x = 106,649,784.28

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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.