Home / 7,109,695.20-10,664,542.80-3,120,607.20

Finding the Fourth Proportional to 7,109,695.20, 10,664,542.80 and 3,120,607.20

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Solution

The fourth proportional to 7,109,695.20, 10,664,542.80 and 3,120,607.20 is: 4,680,910.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109,695.20 : 10,664,542.80 = 3,120,607.20 : x
  2. Step 2: Convert to fraction form
    7,109,695.20/10,664,542.80 = 3,120,607.20/x
  3. Step 3: Cross multiply
    7,109,695.20x = 10,664,542.80 × 3,120,607.20
  4. Step 4: Simplify right side
    7,109,695.20x = 33,279,849,046,388.16
  5. Step 5: Solve for x
    x = 33,279,849,046,388.16/7,109,695.20
  6. Step 6: Final answer
    x = 4,680,910.80

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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.