Home / 78,732,002.20-118,098,003.30-75,862,220.80

Finding the Fourth Proportional to 78,732,002.20, 118,098,003.30 and 75,862,220.80

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Solution

The fourth proportional to 78,732,002.20, 118,098,003.30 and 75,862,220.80 is: 113,793,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,002.20 : 118,098,003.30 = 75,862,220.80 : x
  2. Step 2: Convert to fraction form
    78,732,002.20/118,098,003.30 = 75,862,220.80/x
  3. Step 3: Cross multiply
    78,732,002.20x = 118,098,003.30 × 75,862,220.80
  4. Step 4: Simplify right side
    78,732,002.20x = 8,959,176,802,383,728
  5. Step 5: Solve for x
    x = 8,959,176,802,383,728/78,732,002.20
  6. Step 6: Final answer
    x = 113,793,331.20

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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.