Home / 8,321,430.30-12,482,145.45-5,487,078.30

Finding the Fourth Proportional to 8,321,430.30, 12,482,145.45 and 5,487,078.30

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Solution

The fourth proportional to 8,321,430.30, 12,482,145.45 and 5,487,078.30 is: 8,230,617.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,430.30 : 12,482,145.45 = 5,487,078.30 : x
  2. Step 2: Convert to fraction form
    8,321,430.30/12,482,145.45 = 5,487,078.30/x
  3. Step 3: Cross multiply
    8,321,430.30x = 12,482,145.45 × 5,487,078.30
  4. Step 4: Simplify right side
    8,321,430.30x = 68,490,509,436,138.73
  5. Step 5: Solve for x
    x = 68,490,509,436,138.73/8,321,430.30
  6. Step 6: Final answer
    x = 8,230,617.45

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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.