Home / 57,115,393.46-85,707,123.15-20,726,621.42

Finding the Fourth Proportional to 57,115,393.46, 85,707,123.15 and 20,726,621.42

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Solution

The fourth proportional to 57,115,393.46, 85,707,123.15 and 20,726,621.42 is: 31,102,282.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,115,393.46 : 85,707,123.15 = 20,726,621.42 : x
  2. Step 2: Convert to fraction form
    57,115,393.46/85,707,123.15 = 20,726,621.42/x
  3. Step 3: Cross multiply
    57,115,393.46x = 85,707,123.15 × 20,726,621.42
  4. Step 4: Simplify right side
    57,115,393.46x = 1,776,419,094,527,368.25
  5. Step 5: Solve for x
    x = 1,776,419,094,527,368.25/57,115,393.46
  6. Step 6: Final answer
    x = 31,102,282.36

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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.