Home / 8,179,555.20-12,269,332.80-5,156,246.40

Finding the Fourth Proportional to 8,179,555.20, 12,269,332.80 and 5,156,246.40

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Solution

The fourth proportional to 8,179,555.20, 12,269,332.80 and 5,156,246.40 is: 7,734,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179,555.20 : 12,269,332.80 = 5,156,246.40 : x
  2. Step 2: Convert to fraction form
    8,179,555.20/12,269,332.80 = 5,156,246.40/x
  3. Step 3: Cross multiply
    8,179,555.20x = 12,269,332.80 × 5,156,246.40
  4. Step 4: Simplify right side
    8,179,555.20x = 63,263,703,080,401.93
  5. Step 5: Solve for x
    x = 63,263,703,080,401.93/8,179,555.20
  6. Step 6: Final answer
    x = 7,734,369.60

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Similar ratio
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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.