Home / 8,230,121.10-12,345,181.65-5,206,812.30

Finding the Fourth Proportional to 8,230,121.10, 12,345,181.65 and 5,206,812.30

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Solution

The fourth proportional to 8,230,121.10, 12,345,181.65 and 5,206,812.30 is: 7,810,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,230,121.10 : 12,345,181.65 = 5,206,812.30 : x
  2. Step 2: Convert to fraction form
    8,230,121.10/12,345,181.65 = 5,206,812.30/x
  3. Step 3: Cross multiply
    8,230,121.10x = 12,345,181.65 × 5,206,812.30
  4. Step 4: Simplify right side
    8,230,121.10x = 64,279,043,660,954.30
  5. Step 5: Solve for x
    x = 64,279,043,660,954.30/8,230,121.10
  6. Step 6: Final answer
    x = 7,810,218.45

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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.