Home / 87,789,949.60-121,148,818.32-48,631,609.12

Finding the Fourth Proportional to 87,789,949.60, 121,148,818.32 and 48,631,609.12

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Solution

The fourth proportional to 87,789,949.60, 121,148,818.32 and 48,631,609.12 is: 67,110,893.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,789,949.60 : 121,148,818.32 = 48,631,609.12 : x
  2. Step 2: Convert to fraction form
    87,789,949.60/121,148,818.32 = 48,631,609.12/x
  3. Step 3: Cross multiply
    87,789,949.60x = 121,148,818.32 × 48,631,609.12
  4. Step 4: Simplify right side
    87,789,949.60x = 5,891,661,977,888,134
  5. Step 5: Solve for x
    x = 5,891,661,977,888,134/87,789,949.60
  6. Step 6: Final answer
    x = 67,110,893.73

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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.