Home / 161,590,376.30-222,996,146.20-91,980,239.90

Finding the Fourth Proportional to 161,590,376.30, 222,996,146.20 and 91,980,239.90

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Solution

The fourth proportional to 161,590,376.30, 222,996,146.20 and 91,980,239.90 is: 126,933,543.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,590,376.30 : 222,996,146.20 = 91,980,239.90 : x
  2. Step 2: Convert to fraction form
    161,590,376.30/222,996,146.20 = 91,980,239.90/x
  3. Step 3: Cross multiply
    161,590,376.30x = 222,996,146.20 × 91,980,239.90
  4. Step 4: Simplify right side
    161,590,376.30x = 20,511,239,024,251,472
  5. Step 5: Solve for x
    x = 20,511,239,024,251,472/161,590,376.30
  6. Step 6: Final answer
    x = 126,933,543.28

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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.