Home / 57,177,175.20-85,727,848.32-20,781,244.32

Finding the Fourth Proportional to 57,177,175.20, 85,727,848.32 and 20,781,244.32

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Solution

The fourth proportional to 57,177,175.20, 85,727,848.32 and 20,781,244.32 is: 31,158,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,177,175.20 : 85,727,848.32 = 20,781,244.32 : x
  2. Step 2: Convert to fraction form
    57,177,175.20/85,727,848.32 = 20,781,244.32/x
  3. Step 3: Cross multiply
    57,177,175.20x = 85,727,848.32 × 20,781,244.32
  4. Step 4: Simplify right side
    57,177,175.20x = 1,781,531,360,965,821.50
  5. Step 5: Solve for x
    x = 1,781,531,360,965,821.50/57,177,175.20
  6. Step 6: Final answer
    x = 31,158,086.33

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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.