Home / 10,286,977.28-15,400,196.12-6,866,780.54

Finding the Fourth Proportional to 10,286,977.28, 15,400,196.12 and 6,866,780.54

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Solution

The fourth proportional to 10,286,977.28, 15,400,196.12 and 6,866,780.54 is: 10,279,965.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286,977.28 : 15,400,196.12 = 6,866,780.54 : x
  2. Step 2: Convert to fraction form
    10,286,977.28/15,400,196.12 = 6,866,780.54/x
  3. Step 3: Cross multiply
    10,286,977.28x = 15,400,196.12 × 6,866,780.54
  4. Step 4: Simplify right side
    10,286,977.28x = 105,749,766,969,165.48
  5. Step 5: Solve for x
    x = 105,749,766,969,165.48/10,286,977.28
  6. Step 6: Final answer
    x = 10,279,965.06

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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.