Home / 5,320,422.40-7,981,670.40-2,125,004.80

Finding the Fourth Proportional to 5,320,422.40, 7,981,670.40 and 2,125,004.80

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Solution

The fourth proportional to 5,320,422.40, 7,981,670.40 and 2,125,004.80 is: 3,187,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320,422.40 : 7,981,670.40 = 2,125,004.80 : x
  2. Step 2: Convert to fraction form
    5,320,422.40/7,981,670.40 = 2,125,004.80/x
  3. Step 3: Cross multiply
    5,320,422.40x = 7,981,670.40 × 2,125,004.80
  4. Step 4: Simplify right side
    5,320,422.40x = 16,961,087,912,017.92
  5. Step 5: Solve for x
    x = 16,961,087,912,017.92/5,320,422.40
  6. Step 6: Final answer
    x = 3,187,921.30

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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.