Home / 122,435,851.76-168,958,024.40-66,680,013.68

Finding the Fourth Proportional to 122,435,851.76, 168,958,024.40 and 66,680,013.68

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Solution

The fourth proportional to 122,435,851.76, 168,958,024.40 and 66,680,013.68 is: 92,016,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,435,851.76 : 168,958,024.40 = 66,680,013.68 : x
  2. Step 2: Convert to fraction form
    122,435,851.76/168,958,024.40 = 66,680,013.68/x
  3. Step 3: Cross multiply
    122,435,851.76x = 168,958,024.40 × 66,680,013.68
  4. Step 4: Simplify right side
    122,435,851.76x = 11,266,123,378,337,774
  5. Step 5: Solve for x
    x = 11,266,123,378,337,774/122,435,851.76
  6. Step 6: Final answer
    x = 92,016,539.41

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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.