Home / 6,479,423.20-9,719,134.80-5,219,711.20

Finding the Fourth Proportional to 6,479,423.20, 9,719,134.80 and 5,219,711.20

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Solution

The fourth proportional to 6,479,423.20, 9,719,134.80 and 5,219,711.20 is: 7,829,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479,423.20 : 9,719,134.80 = 5,219,711.20 : x
  2. Step 2: Convert to fraction form
    6,479,423.20/9,719,134.80 = 5,219,711.20/x
  3. Step 3: Cross multiply
    6,479,423.20x = 9,719,134.80 × 5,219,711.20
  4. Step 4: Simplify right side
    6,479,423.20x = 50,731,076,769,869.77
  5. Step 5: Solve for x
    x = 50,731,076,769,869.77/6,479,423.20
  6. Step 6: Final answer
    x = 7,829,566.80

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Double scale
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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.