Home / 66,100,615.20-99,150,922.80-45,693,280.80

Finding the Fourth Proportional to 66,100,615.20, 99,150,922.80 and 45,693,280.80

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Solution

The fourth proportional to 66,100,615.20, 99,150,922.80 and 45,693,280.80 is: 68,539,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,100,615.20 : 99,150,922.80 = 45,693,280.80 : x
  2. Step 2: Convert to fraction form
    66,100,615.20/99,150,922.80 = 45,693,280.80/x
  3. Step 3: Cross multiply
    66,100,615.20x = 99,150,922.80 × 45,693,280.80
  4. Step 4: Simplify right side
    66,100,615.20x = 4,530,530,957,079,522
  5. Step 5: Solve for x
    x = 4,530,530,957,079,522/66,100,615.20
  6. Step 6: Final answer
    x = 68,539,921.20

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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.