Home / 56,165,728.80-84,185,607.60-28,861,471.20

Finding the Fourth Proportional to 56,165,728.80, 84,185,607.60 and 28,861,471.20

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Solution

The fourth proportional to 56,165,728.80, 84,185,607.60 and 28,861,471.20 is: 43,259,840.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,165,728.80 : 84,185,607.60 = 28,861,471.20 : x
  2. Step 2: Convert to fraction form
    56,165,728.80/84,185,607.60 = 28,861,471.20/x
  3. Step 3: Cross multiply
    56,165,728.80x = 84,185,607.60 × 28,861,471.20
  4. Step 4: Simplify right side
    56,165,728.80x = 2,429,720,489,201,901
  5. Step 5: Solve for x
    x = 2,429,720,489,201,901/56,165,728.80
  6. Step 6: Final answer
    x = 43,259,840.85

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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.