Home / 8,124,435.22-11,205,183.20-7,142,274.25

Finding the Fourth Proportional to 8,124,435.22, 11,205,183.20 and 7,142,274.25

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Solution

The fourth proportional to 8,124,435.22, 11,205,183.20 and 7,142,274.25 is: 9,850,591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124,435.22 : 11,205,183.20 = 7,142,274.25 : x
  2. Step 2: Convert to fraction form
    8,124,435.22/11,205,183.20 = 7,142,274.25/x
  3. Step 3: Cross multiply
    8,124,435.22x = 11,205,183.20 × 7,142,274.25
  4. Step 4: Simplify right side
    8,124,435.22x = 80,030,491,344,155.31
  5. Step 5: Solve for x
    x = 80,030,491,344,155.31/8,124,435.22
  6. Step 6: Final answer
    x = 9,850,591.36

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.