Home / 143,932,844.62-215,834,356.77-71,121,238.30

Finding the Fourth Proportional to 143,932,844.62, 215,834,356.77 and 71,121,238.30

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Solution

The fourth proportional to 143,932,844.62, 215,834,356.77 and 71,121,238.30 is: 106,649,783.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,932,844.62 : 215,834,356.77 = 71,121,238.30 : x
  2. Step 2: Convert to fraction form
    143,932,844.62/215,834,356.77 = 71,121,238.30/x
  3. Step 3: Cross multiply
    143,932,844.62x = 215,834,356.77 × 71,121,238.30
  4. Step 4: Simplify right side
    143,932,844.62x = 15,350,406,721,166,388
  5. Step 5: Solve for x
    x = 15,350,406,721,166,388/143,932,844.62
  6. Step 6: Final answer
    x = 106,649,783.53

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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.