Home / 81,061,057.72-121,573,352.57-37,299,839.30

Finding the Fourth Proportional to 81,061,057.72, 121,573,352.57 and 37,299,839.30

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Solution

The fourth proportional to 81,061,057.72, 121,573,352.57 and 37,299,839.30 is: 55,941,368.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,061,057.72 : 121,573,352.57 = 37,299,839.30 : x
  2. Step 2: Convert to fraction form
    81,061,057.72/121,573,352.57 = 37,299,839.30/x
  3. Step 3: Cross multiply
    81,061,057.72x = 121,573,352.57 × 37,299,839.30
  4. Step 4: Simplify right side
    81,061,057.72x = 4,534,666,513,228,876
  5. Step 5: Solve for x
    x = 4,534,666,513,228,876/81,061,057.72
  6. Step 6: Final answer
    x = 55,941,368.65

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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.