Home / 81,576,233.70-122,364,350.55-61,420,841.70

Finding the Fourth Proportional to 81,576,233.70, 122,364,350.55 and 61,420,841.70

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Solution

The fourth proportional to 81,576,233.70, 122,364,350.55 and 61,420,841.70 is: 92,131,262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576,233.70 : 122,364,350.55 = 61,420,841.70 : x
  2. Step 2: Convert to fraction form
    81,576,233.70/122,364,350.55 = 61,420,841.70/x
  3. Step 3: Cross multiply
    81,576,233.70x = 122,364,350.55 × 61,420,841.70
  4. Step 4: Simplify right side
    81,576,233.70x = 7,515,721,404,854,858
  5. Step 5: Solve for x
    x = 7,515,721,404,854,858/81,576,233.70
  6. Step 6: Final answer
    x = 92,131,262.55

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Similar ratio
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1.5x scale

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.