Home / 8,279,134.40-12,418,701.60-3,492,228.80

Finding the Fourth Proportional to 8,279,134.40, 12,418,701.60 and 3,492,228.80

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Solution

The fourth proportional to 8,279,134.40, 12,418,701.60 and 3,492,228.80 is: 5,238,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279,134.40 : 12,418,701.60 = 3,492,228.80 : x
  2. Step 2: Convert to fraction form
    8,279,134.40/12,418,701.60 = 3,492,228.80/x
  3. Step 3: Cross multiply
    8,279,134.40x = 12,418,701.60 × 3,492,228.80
  4. Step 4: Simplify right side
    8,279,134.40x = 43,368,947,386,126.08
  5. Step 5: Solve for x
    x = 43,368,947,386,126.08/8,279,134.40
  6. Step 6: Final answer
    x = 5,238,343.20

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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.