Home / 15,271,835.78-21,074,591.13-8,396,267.78

Finding the Fourth Proportional to 15,271,835.78, 21,074,591.13 and 8,396,267.78

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Solution

The fourth proportional to 15,271,835.78, 21,074,591.13 and 8,396,267.78 is: 11,586,551.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,271,835.78 : 21,074,591.13 = 8,396,267.78 : x
  2. Step 2: Convert to fraction form
    15,271,835.78/21,074,591.13 = 8,396,267.78/x
  3. Step 3: Cross multiply
    15,271,835.78x = 21,074,591.13 × 8,396,267.78
  4. Step 4: Simplify right side
    15,271,835.78x = 176,947,910,481,492.78
  5. Step 5: Solve for x
    x = 176,947,910,481,492.78/15,271,835.78
  6. Step 6: Final answer
    x = 11,586,551.42

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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.