Home / 8,512,820.60-12,769,230.90-5,663,694.20

Finding the Fourth Proportional to 8,512,820.60, 12,769,230.90 and 5,663,694.20

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Solution

The fourth proportional to 8,512,820.60, 12,769,230.90 and 5,663,694.20 is: 8,495,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512,820.60 : 12,769,230.90 = 5,663,694.20 : x
  2. Step 2: Convert to fraction form
    8,512,820.60/12,769,230.90 = 5,663,694.20/x
  3. Step 3: Cross multiply
    8,512,820.60x = 12,769,230.90 × 5,663,694.20
  4. Step 4: Simplify right side
    8,512,820.60x = 72,321,018,986,790.78
  5. Step 5: Solve for x
    x = 72,321,018,986,790.78/8,512,820.60
  6. Step 6: Final answer
    x = 8,495,541.30

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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.