Home / 128,304,003.30-192,456,004.95-79,836,584.10

Finding the Fourth Proportional to 128,304,003.30, 192,456,004.95 and 79,836,584.10

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Solution

The fourth proportional to 128,304,003.30, 192,456,004.95 and 79,836,584.10 is: 119,754,876.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,003.30 : 192,456,004.95 = 79,836,584.10 : x
  2. Step 2: Convert to fraction form
    128,304,003.30/192,456,004.95 = 79,836,584.10/x
  3. Step 3: Cross multiply
    128,304,003.30x = 192,456,004.95 × 79,836,584.10
  4. Step 4: Simplify right side
    128,304,003.30x = 15,365,030,024,740,690
  5. Step 5: Solve for x
    x = 15,365,030,024,740,690/128,304,003.30
  6. Step 6: Final answer
    x = 119,754,876.15

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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.