Home / 8,380,084.80-12,570,127.20-2,988,911.10

Finding the Fourth Proportional to 8,380,084.80, 12,570,127.20 and 2,988,911.10

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Solution

The fourth proportional to 8,380,084.80, 12,570,127.20 and 2,988,911.10 is: 4,483,366.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380,084.80 : 12,570,127.20 = 2,988,911.10 : x
  2. Step 2: Convert to fraction form
    8,380,084.80/12,570,127.20 = 2,988,911.10/x
  3. Step 3: Cross multiply
    8,380,084.80x = 12,570,127.20 × 2,988,911.10
  4. Step 4: Simplify right side
    8,380,084.80x = 37,570,992,716,491.92
  5. Step 5: Solve for x
    x = 37,570,992,716,491.92/8,380,084.80
  6. Step 6: Final answer
    x = 4,483,366.65

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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.