Home / 31,399,795.24-47,117,964.30-13,202,672.20

Finding the Fourth Proportional to 31,399,795.24, 47,117,964.30 and 13,202,672.20

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Solution

The fourth proportional to 31,399,795.24, 47,117,964.30 and 13,202,672.20 is: 19,811,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399,795.24 : 47,117,964.30 = 13,202,672.20 : x
  2. Step 2: Convert to fraction form
    31,399,795.24/47,117,964.30 = 13,202,672.20/x
  3. Step 3: Cross multiply
    31,399,795.24x = 47,117,964.30 × 13,202,672.20
  4. Step 4: Simplify right side
    31,399,795.24x = 622,083,037,384,202.38
  5. Step 5: Solve for x
    x = 622,083,037,384,202.38/31,399,795.24
  6. Step 6: Final answer
    x = 19,811,690.89

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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.