Home / 12,511,983.20-18,744,355.20-6,425,999.60

Finding the Fourth Proportional to 12,511,983.20, 18,744,355.20 and 6,425,999.60

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Solution

The fourth proportional to 12,511,983.20, 18,744,355.20 and 6,425,999.60 is: 9,626,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511,983.20 : 18,744,355.20 = 6,425,999.60 : x
  2. Step 2: Convert to fraction form
    12,511,983.20/18,744,355.20 = 6,425,999.60/x
  3. Step 3: Cross multiply
    12,511,983.20x = 18,744,355.20 × 6,425,999.60
  4. Step 4: Simplify right side
    12,511,983.20x = 120,451,219,017,457.91
  5. Step 5: Solve for x
    x = 120,451,219,017,457.91/12,511,983.20
  6. Step 6: Final answer
    x = 9,626,868.67

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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.