Home / 8,512,230.30-12,768,345.45-5,327,180.70

Finding the Fourth Proportional to 8,512,230.30, 12,768,345.45 and 5,327,180.70

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Solution

The fourth proportional to 8,512,230.30, 12,768,345.45 and 5,327,180.70 is: 7,990,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512,230.30 : 12,768,345.45 = 5,327,180.70 : x
  2. Step 2: Convert to fraction form
    8,512,230.30/12,768,345.45 = 5,327,180.70/x
  3. Step 3: Cross multiply
    8,512,230.30x = 12,768,345.45 × 5,327,180.70
  4. Step 4: Simplify right side
    8,512,230.30x = 68,019,283,452,172.81
  5. Step 5: Solve for x
    x = 68,019,283,452,172.81/8,512,230.30
  6. Step 6: Final answer
    x = 7,990,771.05

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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.