Home / 120,296,221.92-166,008,909.04-65,292,089.76

Finding the Fourth Proportional to 120,296,221.92, 166,008,909.04 and 65,292,089.76

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Solution

The fourth proportional to 120,296,221.92, 166,008,909.04 and 65,292,089.76 is: 90,103,150.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,296,221.92 : 166,008,909.04 = 65,292,089.76 : x
  2. Step 2: Convert to fraction form
    120,296,221.92/166,008,909.04 = 65,292,089.76/x
  3. Step 3: Cross multiply
    120,296,221.92x = 166,008,909.04 × 65,292,089.76
  4. Step 4: Simplify right side
    120,296,221.92x = 10,839,068,589,999,354
  5. Step 5: Solve for x
    x = 10,839,068,589,999,354/120,296,221.92
  6. Step 6: Final answer
    x = 90,103,150.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.