Home / 81,701,997.60-122,552,996.40-75,466,423.20

Finding the Fourth Proportional to 81,701,997.60, 122,552,996.40 and 75,466,423.20

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Solution

The fourth proportional to 81,701,997.60, 122,552,996.40 and 75,466,423.20 is: 113,199,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,701,997.60 : 122,552,996.40 = 75,466,423.20 : x
  2. Step 2: Convert to fraction form
    81,701,997.60/122,552,996.40 = 75,466,423.20/x
  3. Step 3: Cross multiply
    81,701,997.60x = 122,552,996.40 × 75,466,423.20
  4. Step 4: Simplify right side
    81,701,997.60x = 9,248,636,290,750,478
  5. Step 5: Solve for x
    x = 9,248,636,290,750,478/81,701,997.60
  6. Step 6: Final answer
    x = 113,199,634.80

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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.