Home / 8,144,487.20-12,216,730.80-5,416,423.40

Finding the Fourth Proportional to 8,144,487.20, 12,216,730.80 and 5,416,423.40

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Solution

The fourth proportional to 8,144,487.20, 12,216,730.80 and 5,416,423.40 is: 8,124,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,144,487.20 : 12,216,730.80 = 5,416,423.40 : x
  2. Step 2: Convert to fraction form
    8,144,487.20/12,216,730.80 = 5,416,423.40/x
  3. Step 3: Cross multiply
    8,144,487.20x = 12,216,730.80 × 5,416,423.40
  4. Step 4: Simplify right side
    8,144,487.20x = 66,170,986,576,620.73
  5. Step 5: Solve for x
    x = 66,170,986,576,620.73/8,144,487.20
  6. Step 6: Final answer
    x = 8,124,635.10

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1.5x scale

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.