Home / 6,520,919.20-9,781,378.80-4,253,437.60

Finding the Fourth Proportional to 6,520,919.20, 9,781,378.80 and 4,253,437.60

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Solution

The fourth proportional to 6,520,919.20, 9,781,378.80 and 4,253,437.60 is: 6,380,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520,919.20 : 9,781,378.80 = 4,253,437.60 : x
  2. Step 2: Convert to fraction form
    6,520,919.20/9,781,378.80 = 4,253,437.60/x
  3. Step 3: Cross multiply
    6,520,919.20x = 9,781,378.80 × 4,253,437.60
  4. Step 4: Simplify right side
    6,520,919.20x = 41,604,484,367,762.88
  5. Step 5: Solve for x
    x = 41,604,484,367,762.88/6,520,919.20
  6. Step 6: Final answer
    x = 6,380,156.40

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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.