Home / 15,047,859.08-20,766,167.56-8,172,390.36

Finding the Fourth Proportional to 15,047,859.08, 20,766,167.56 and 8,172,390.36

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Solution

The fourth proportional to 15,047,859.08, 20,766,167.56 and 8,172,390.36 is: 11,277,964.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047,859.08 : 20,766,167.56 = 8,172,390.36 : x
  2. Step 2: Convert to fraction form
    15,047,859.08/20,766,167.56 = 8,172,390.36/x
  3. Step 3: Cross multiply
    15,047,859.08x = 20,766,167.56 × 8,172,390.36
  4. Step 4: Simplify right side
    15,047,859.08x = 169,709,227,581,488.72
  5. Step 5: Solve for x
    x = 169,709,227,581,488.72/15,047,859.08
  6. Step 6: Final answer
    x = 11,277,964.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.