Home / 81,650,489.40-122,475,734.10-36,300,857.40

Finding the Fourth Proportional to 81,650,489.40, 122,475,734.10 and 36,300,857.40

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Solution

The fourth proportional to 81,650,489.40, 122,475,734.10 and 36,300,857.40 is: 54,451,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,650,489.40 : 122,475,734.10 = 36,300,857.40 : x
  2. Step 2: Convert to fraction form
    81,650,489.40/122,475,734.10 = 36,300,857.40/x
  3. Step 3: Cross multiply
    81,650,489.40x = 122,475,734.10 × 36,300,857.40
  4. Step 4: Simplify right side
    81,650,489.40x = 4,445,974,158,524,417
  5. Step 5: Solve for x
    x = 4,445,974,158,524,417/81,650,489.40
  6. Step 6: Final answer
    x = 54,451,286.10

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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.