Home / 13,471,276.16-20,219,689.28-8,338,178.88

Finding the Fourth Proportional to 13,471,276.16, 20,219,689.28 and 8,338,178.88

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Solution

The fourth proportional to 13,471,276.16, 20,219,689.28 and 8,338,178.88 is: 12,515,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471,276.16 : 20,219,689.28 = 8,338,178.88 : x
  2. Step 2: Convert to fraction form
    13,471,276.16/20,219,689.28 = 8,338,178.88/x
  3. Step 3: Cross multiply
    13,471,276.16x = 20,219,689.28 × 8,338,178.88
  4. Step 4: Simplify right side
    13,471,276.16x = 168,595,386,114,658.41
  5. Step 5: Solve for x
    x = 168,595,386,114,658.41/13,471,276.16
  6. Step 6: Final answer
    x = 12,515,175.56

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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.