Home / 122,241,892.74-168,638,165.96-72,654,087.97

Finding the Fourth Proportional to 122,241,892.74, 168,638,165.96 and 72,654,087.97

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Solution

The fourth proportional to 122,241,892.74, 168,638,165.96 and 72,654,087.97 is: 100,229,568.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,241,892.74 : 168,638,165.96 = 72,654,087.97 : x
  2. Step 2: Convert to fraction form
    122,241,892.74/168,638,165.96 = 72,654,087.97/x
  3. Step 3: Cross multiply
    122,241,892.74x = 168,638,165.96 × 72,654,087.97
  4. Step 4: Simplify right side
    122,241,892.74x = 12,252,252,144,598,938
  5. Step 5: Solve for x
    x = 12,252,252,144,598,938/122,241,892.74
  6. Step 6: Final answer
    x = 100,229,568.35

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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.