Home / 81,092,620.90-121,640,175.51-27,240,399.46

Finding the Fourth Proportional to 81,092,620.90, 121,640,175.51 and 27,240,399.46

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Solution

The fourth proportional to 81,092,620.90, 121,640,175.51 and 27,240,399.46 is: 40,861,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,092,620.90 : 121,640,175.51 = 27,240,399.46 : x
  2. Step 2: Convert to fraction form
    81,092,620.90/121,640,175.51 = 27,240,399.46/x
  3. Step 3: Cross multiply
    81,092,620.90x = 121,640,175.51 × 27,240,399.46
  4. Step 4: Simplify right side
    81,092,620.90x = 3,313,526,971,276,909.50
  5. Step 5: Solve for x
    x = 3,313,526,971,276,909.50/81,092,620.90
  6. Step 6: Final answer
    x = 40,861,017.12

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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.