Home / 81,224,721.20-121,824,008.40-23,703,510.80

Finding the Fourth Proportional to 81,224,721.20, 121,824,008.40 and 23,703,510.80

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Solution

The fourth proportional to 81,224,721.20, 121,824,008.40 and 23,703,510.80 is: 35,551,451.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,224,721.20 : 121,824,008.40 = 23,703,510.80 : x
  2. Step 2: Convert to fraction form
    81,224,721.20/121,824,008.40 = 23,703,510.80/x
  3. Step 3: Cross multiply
    81,224,721.20x = 121,824,008.40 × 23,703,510.80
  4. Step 4: Simplify right side
    81,224,721.20x = 2,887,656,698,808,691
  5. Step 5: Solve for x
    x = 2,887,656,698,808,691/81,224,721.20
  6. Step 6: Final answer
    x = 35,551,451.04

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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.