Home / 66,570,832.20-99,856,248.30-40,928,694.60

Finding the Fourth Proportional to 66,570,832.20, 99,856,248.30 and 40,928,694.60

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Solution

The fourth proportional to 66,570,832.20, 99,856,248.30 and 40,928,694.60 is: 61,393,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,570,832.20 : 99,856,248.30 = 40,928,694.60 : x
  2. Step 2: Convert to fraction form
    66,570,832.20/99,856,248.30 = 40,928,694.60/x
  3. Step 3: Cross multiply
    66,570,832.20x = 99,856,248.30 × 40,928,694.60
  4. Step 4: Simplify right side
    66,570,832.20x = 4,086,985,890,572,469
  5. Step 5: Solve for x
    x = 4,086,985,890,572,469/66,570,832.20
  6. Step 6: Final answer
    x = 61,393,041.90

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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.