Home / 8,639,915.20-12,959,784.04-4,994,325.42

Finding the Fourth Proportional to 8,639,915.20, 12,959,784.04 and 4,994,325.42

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Solution

The fourth proportional to 8,639,915.20, 12,959,784.04 and 4,994,325.42 is: 7,491,436.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639,915.20 : 12,959,784.04 = 4,994,325.42 : x
  2. Step 2: Convert to fraction form
    8,639,915.20/12,959,784.04 = 4,994,325.42/x
  3. Step 3: Cross multiply
    8,639,915.20x = 12,959,784.04 × 4,994,325.42
  4. Step 4: Simplify right side
    8,639,915.20x = 64,725,378,856,196.48
  5. Step 5: Solve for x
    x = 64,725,378,856,196.48/8,639,915.20
  6. Step 6: Final answer
    x = 7,491,436.82

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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.