Home / 8,480,080.10-12,720,120.15-5,078,857.70

Finding the Fourth Proportional to 8,480,080.10, 12,720,120.15 and 5,078,857.70

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Solution

The fourth proportional to 8,480,080.10, 12,720,120.15 and 5,078,857.70 is: 7,618,286.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480,080.10 : 12,720,120.15 = 5,078,857.70 : x
  2. Step 2: Convert to fraction form
    8,480,080.10/12,720,120.15 = 5,078,857.70/x
  3. Step 3: Cross multiply
    8,480,080.10x = 12,720,120.15 × 5,078,857.70
  4. Step 4: Simplify right side
    8,480,080.10x = 64,603,680,168,752.66
  5. Step 5: Solve for x
    x = 64,603,680,168,752.66/8,480,080.10
  6. Step 6: Final answer
    x = 7,618,286.55

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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.