Home / 143,932,843.62-215,834,355.27-71,121,237.30

Finding the Fourth Proportional to 143,932,843.62, 215,834,355.27 and 71,121,237.30

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Solution

The fourth proportional to 143,932,843.62, 215,834,355.27 and 71,121,237.30 is: 106,649,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,932,843.62 : 215,834,355.27 = 71,121,237.30 : x
  2. Step 2: Convert to fraction form
    143,932,843.62/215,834,355.27 = 71,121,237.30/x
  3. Step 3: Cross multiply
    143,932,843.62x = 215,834,355.27 × 71,121,237.30
  4. Step 4: Simplify right side
    143,932,843.62x = 15,350,406,398,650,176
  5. Step 5: Solve for x
    x = 15,350,406,398,650,176/143,932,843.62
  6. Step 6: Final answer
    x = 106,649,782.03

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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.