Home / 8,180,807.12-11,309,921.20-6,140,073.68

Finding the Fourth Proportional to 8,180,807.12, 11,309,921.20 and 6,140,073.68

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Solution

The fourth proportional to 8,180,807.12, 11,309,921.20 and 6,140,073.68 is: 8,488,618.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180,807.12 : 11,309,921.20 = 6,140,073.68 : x
  2. Step 2: Convert to fraction form
    8,180,807.12/11,309,921.20 = 6,140,073.68/x
  3. Step 3: Cross multiply
    8,180,807.12x = 11,309,921.20 × 6,140,073.68
  4. Step 4: Simplify right side
    8,180,807.12x = 69,443,749,482,994.01
  5. Step 5: Solve for x
    x = 69,443,749,482,994.01/8,180,807.12
  6. Step 6: Final answer
    x = 8,488,618.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.