Home / 12,131,472.20-18,197,208.30-5,754,180.20

Finding the Fourth Proportional to 12,131,472.20, 18,197,208.30 and 5,754,180.20

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Solution

The fourth proportional to 12,131,472.20, 18,197,208.30 and 5,754,180.20 is: 8,631,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,472.20 : 18,197,208.30 = 5,754,180.20 : x
  2. Step 2: Convert to fraction form
    12,131,472.20/18,197,208.30 = 5,754,180.20/x
  3. Step 3: Cross multiply
    12,131,472.20x = 18,197,208.30 × 5,754,180.20
  4. Step 4: Simplify right side
    12,131,472.20x = 104,710,015,695,135.67
  5. Step 5: Solve for x
    x = 104,710,015,695,135.67/12,131,472.20
  6. Step 6: Final answer
    x = 8,631,270.30

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Double scale
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Similar ratio
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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.