Home / 2,145,540.30-3,221,123.13-1,438,731.06

Finding the Fourth Proportional to 2,145,540.30, 3,221,123.13 and 1,438,731.06

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Solution

The fourth proportional to 2,145,540.30, 3,221,123.13 and 1,438,731.06 is: 2,159,982.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,540.30 : 3,221,123.13 = 1,438,731.06 : x
  2. Step 2: Convert to fraction form
    2,145,540.30/3,221,123.13 = 1,438,731.06/x
  3. Step 3: Cross multiply
    2,145,540.30x = 3,221,123.13 × 1,438,731.06
  4. Step 4: Simplify right side
    2,145,540.30x = 4,634,329,895,215.42
  5. Step 5: Solve for x
    x = 4,634,329,895,215.42/2,145,540.30
  6. Step 6: Final answer
    x = 2,159,982.68

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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.