Home / 10,352,821.20-15,529,231.80-9,722,965.20

Finding the Fourth Proportional to 10,352,821.20, 15,529,231.80 and 9,722,965.20

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Solution

The fourth proportional to 10,352,821.20, 15,529,231.80 and 9,722,965.20 is: 14,584,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,352,821.20 : 15,529,231.80 = 9,722,965.20 : x
  2. Step 2: Convert to fraction form
    10,352,821.20/15,529,231.80 = 9,722,965.20/x
  3. Step 3: Cross multiply
    10,352,821.20x = 15,529,231.80 × 9,722,965.20
  4. Step 4: Simplify right side
    10,352,821.20x = 150,990,180,374,133.34
  5. Step 5: Solve for x
    x = 150,990,180,374,133.34/10,352,821.20
  6. Step 6: Final answer
    x = 14,584,447.80

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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.