Home / 81,060,449.91-121,603,272-27,220,359.03

Finding the Fourth Proportional to 81,060,449.91, 121,603,272 and 27,220,359.03

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Solution

The fourth proportional to 81,060,449.91, 121,603,272 and 27,220,359.03 is: 40,834,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,060,449.91 : 121,603,272 = 27,220,359.03 : x
  2. Step 2: Convert to fraction form
    81,060,449.91/121,603,272 = 27,220,359.03/x
  3. Step 3: Cross multiply
    81,060,449.91x = 121,603,272 × 27,220,359.03
  4. Step 4: Simplify right side
    81,060,449.91x = 3,310,084,723,062,746.50
  5. Step 5: Solve for x
    x = 3,310,084,723,062,746.50/81,060,449.91
  6. Step 6: Final answer
    x = 40,834,768.70

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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.