Home / 66,498,787.20-99,580,219.20-43,656,009.60

Finding the Fourth Proportional to 66,498,787.20, 99,580,219.20 and 43,656,009.60

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Solution

The fourth proportional to 66,498,787.20, 99,580,219.20 and 43,656,009.60 is: 65,373,748.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,498,787.20 : 99,580,219.20 = 43,656,009.60 : x
  2. Step 2: Convert to fraction form
    66,498,787.20/99,580,219.20 = 43,656,009.60/x
  3. Step 3: Cross multiply
    66,498,787.20x = 99,580,219.20 × 43,656,009.60
  4. Step 4: Simplify right side
    66,498,787.20x = 4,347,275,005,365,304.50
  5. Step 5: Solve for x
    x = 4,347,275,005,365,304.50/66,498,787.20
  6. Step 6: Final answer
    x = 65,373,748.73

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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.