Home / 81,771,257.60-122,656,886.40-61,363,923.20

Finding the Fourth Proportional to 81,771,257.60, 122,656,886.40 and 61,363,923.20

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Solution

The fourth proportional to 81,771,257.60, 122,656,886.40 and 61,363,923.20 is: 92,045,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,771,257.60 : 122,656,886.40 = 61,363,923.20 : x
  2. Step 2: Convert to fraction form
    81,771,257.60/122,656,886.40 = 61,363,923.20/x
  3. Step 3: Cross multiply
    81,771,257.60x = 122,656,886.40 × 61,363,923.20
  4. Step 4: Simplify right side
    81,771,257.60x = 7,526,707,757,000,725
  5. Step 5: Solve for x
    x = 7,526,707,757,000,725/81,771,257.60
  6. Step 6: Final answer
    x = 92,045,884.80

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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.