Home / 87,661,621.18-131,230,281.88-53,013,162.66

Finding the Fourth Proportional to 87,661,621.18, 131,230,281.88 and 53,013,162.66

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Solution

The fourth proportional to 87,661,621.18, 131,230,281.88 and 53,013,162.66 is: 79,361,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,661,621.18 : 131,230,281.88 = 53,013,162.66 : x
  2. Step 2: Convert to fraction form
    87,661,621.18/131,230,281.88 = 53,013,162.66/x
  3. Step 3: Cross multiply
    87,661,621.18x = 131,230,281.88 × 53,013,162.66
  4. Step 4: Simplify right side
    87,661,621.18x = 6,956,932,279,222,090
  5. Step 5: Solve for x
    x = 6,956,932,279,222,090/87,661,621.18
  6. Step 6: Final answer
    x = 79,361,209.45

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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.