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Finding the Fourth Proportional to 8,425,500.20, 12,638,250.31 and 8,425,500.20

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Solution

The fourth proportional to 8,425,500.20, 12,638,250.31 and 8,425,500.20 is: 12,638,250.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425,500.20 : 12,638,250.31 = 8,425,500.20 : x
  2. Step 2: Convert to fraction form
    8,425,500.20/12,638,250.31 = 8,425,500.20/x
  3. Step 3: Cross multiply
    8,425,500.20x = 12,638,250.31 × 8,425,500.20
  4. Step 4: Simplify right side
    8,425,500.20x = 106,483,580,493,491.30
  5. Step 5: Solve for x
    x = 106,483,580,493,491.30/8,425,500.20
  6. Step 6: Final answer
    x = 12,638,250.31

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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.