Home / 57,218,210.64-85,781,100.60-18,855,781.20

Finding the Fourth Proportional to 57,218,210.64, 85,781,100.60 and 18,855,781.20

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Solution

The fourth proportional to 57,218,210.64, 85,781,100.60 and 18,855,781.20 is: 28,268,441.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,218,210.64 : 85,781,100.60 = 18,855,781.20 : x
  2. Step 2: Convert to fraction form
    57,218,210.64/85,781,100.60 = 18,855,781.20/x
  3. Step 3: Cross multiply
    57,218,210.64x = 85,781,100.60 × 18,855,781.20
  4. Step 4: Simplify right side
    57,218,210.64x = 1,617,469,664,008,788.50
  5. Step 5: Solve for x
    x = 1,617,469,664,008,788.50/57,218,210.64
  6. Step 6: Final answer
    x = 28,268,441.92

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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.