Home / 133,738,468.92-200,655,488.22-81,322,781.76

Finding the Fourth Proportional to 133,738,468.92, 200,655,488.22 and 81,322,781.76

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Solution

The fourth proportional to 133,738,468.92, 200,655,488.22 and 81,322,781.76 is: 122,013,229.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,738,468.92 : 200,655,488.22 = 81,322,781.76 : x
  2. Step 2: Convert to fraction form
    133,738,468.92/200,655,488.22 = 81,322,781.76/x
  3. Step 3: Cross multiply
    133,738,468.92x = 200,655,488.22 × 81,322,781.76
  4. Step 4: Simplify right side
    133,738,468.92x = 16,317,862,477,461,312
  5. Step 5: Solve for x
    x = 16,317,862,477,461,312/133,738,468.92
  6. Step 6: Final answer
    x = 122,013,229.32

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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.