Home / 91,761,720.78-126,543,151.94-61,654,302.77

Finding the Fourth Proportional to 91,761,720.78, 126,543,151.94 and 61,654,302.77

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Solution

The fourth proportional to 91,761,720.78, 126,543,151.94 and 61,654,302.77 is: 85,023,795.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,761,720.78 : 126,543,151.94 = 61,654,302.77 : x
  2. Step 2: Convert to fraction form
    91,761,720.78/126,543,151.94 = 61,654,302.77/x
  3. Step 3: Cross multiply
    91,761,720.78x = 126,543,151.94 × 61,654,302.77
  4. Step 4: Simplify right side
    91,761,720.78x = 7,801,929,802,237,886
  5. Step 5: Solve for x
    x = 7,801,929,802,237,886/91,761,720.78
  6. Step 6: Final answer
    x = 85,023,795.71

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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.