Home / 81,224,720.20-121,824,006.90-23,703,509.80

Finding the Fourth Proportional to 81,224,720.20, 121,824,006.90 and 23,703,509.80

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Solution

The fourth proportional to 81,224,720.20, 121,824,006.90 and 23,703,509.80 is: 35,551,449.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,224,720.20 : 121,824,006.90 = 23,703,509.80 : x
  2. Step 2: Convert to fraction form
    81,224,720.20/121,824,006.90 = 23,703,509.80/x
  3. Step 3: Cross multiply
    81,224,720.20x = 121,824,006.90 × 23,703,509.80
  4. Step 4: Simplify right side
    81,224,720.20x = 2,887,656,541,429,418
  5. Step 5: Solve for x
    x = 2,887,656,541,429,418/81,224,720.20
  6. Step 6: Final answer
    x = 35,551,449.54

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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.