Home / 8,200,375.20-12,300,562.80-6,287,187.60

Finding the Fourth Proportional to 8,200,375.20, 12,300,562.80 and 6,287,187.60

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Solution

The fourth proportional to 8,200,375.20, 12,300,562.80 and 6,287,187.60 is: 9,430,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,200,375.20 : 12,300,562.80 = 6,287,187.60 : x
  2. Step 2: Convert to fraction form
    8,200,375.20/12,300,562.80 = 6,287,187.60/x
  3. Step 3: Cross multiply
    8,200,375.20x = 12,300,562.80 × 6,287,187.60
  4. Step 4: Simplify right side
    8,200,375.20x = 77,335,945,909,181.28
  5. Step 5: Solve for x
    x = 77,335,945,909,181.28/8,200,375.20
  6. Step 6: Final answer
    x = 9,430,781.40

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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.