Home / 57,115,391.96-85,707,120.90-20,726,619.88

Finding the Fourth Proportional to 57,115,391.96, 85,707,120.90 and 20,726,619.88

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Solution

The fourth proportional to 57,115,391.96, 85,707,120.90 and 20,726,619.88 is: 31,102,280.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,115,391.96 : 85,707,120.90 = 20,726,619.88 : x
  2. Step 2: Convert to fraction form
    57,115,391.96/85,707,120.90 = 20,726,619.88/x
  3. Step 3: Cross multiply
    57,115,391.96x = 85,707,120.90 × 20,726,619.88
  4. Step 4: Simplify right side
    57,115,391.96x = 1,776,418,915,903,503.50
  5. Step 5: Solve for x
    x = 1,776,418,915,903,503.50/57,115,391.96
  6. Step 6: Final answer
    x = 31,102,280.05

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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.