Home / 2,134,219.20-3,200,234.40-638,116.80

Finding the Fourth Proportional to 2,134,219.20, 3,200,234.40 and 638,116.80

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Solution

The fourth proportional to 2,134,219.20, 3,200,234.40 and 638,116.80 is: 956,847.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134,219.20 : 3,200,234.40 = 638,116.80 : x
  2. Step 2: Convert to fraction form
    2,134,219.20/3,200,234.40 = 638,116.80/x
  3. Step 3: Cross multiply
    2,134,219.20x = 3,200,234.40 × 638,116.80
  4. Step 4: Simplify right side
    2,134,219.20x = 2,042,123,334,577.92
  5. Step 5: Solve for x
    x = 2,042,123,334,577.92/2,134,219.20
  6. Step 6: Final answer
    x = 956,847.98

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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.