Home / 6,626,906.20-9,940,359.30-5,430,179.80

Finding the Fourth Proportional to 6,626,906.20, 9,940,359.30 and 5,430,179.80

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Solution

The fourth proportional to 6,626,906.20, 9,940,359.30 and 5,430,179.80 is: 8,145,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626,906.20 : 9,940,359.30 = 5,430,179.80 : x
  2. Step 2: Convert to fraction form
    6,626,906.20/9,940,359.30 = 5,430,179.80/x
  3. Step 3: Cross multiply
    6,626,906.20x = 9,940,359.30 × 5,430,179.80
  4. Step 4: Simplify right side
    6,626,906.20x = 53,977,938,275,602.14
  5. Step 5: Solve for x
    x = 53,977,938,275,602.14/6,626,906.20
  6. Step 6: Final answer
    x = 8,145,269.70

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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.