Home / 15,047,889.24-20,766,209.22-8,172,420.60

Finding the Fourth Proportional to 15,047,889.24, 20,766,209.22 and 8,172,420.60

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Solution

The fourth proportional to 15,047,889.24, 20,766,209.22 and 8,172,420.60 is: 11,278,006.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047,889.24 : 20,766,209.22 = 8,172,420.60 : x
  2. Step 2: Convert to fraction form
    15,047,889.24/20,766,209.22 = 8,172,420.60/x
  3. Step 3: Cross multiply
    15,047,889.24x = 20,766,209.22 × 8,172,420.60
  4. Step 4: Simplify right side
    15,047,889.24x = 169,710,196,013,437.91
  5. Step 5: Solve for x
    x = 169,710,196,013,437.91/15,047,889.24
  6. Step 6: Final answer
    x = 11,278,006.72

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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.