Home / 5,320,431.40-7,981,683.90-2,125,013.80

Finding the Fourth Proportional to 5,320,431.40, 7,981,683.90 and 2,125,013.80

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Solution

The fourth proportional to 5,320,431.40, 7,981,683.90 and 2,125,013.80 is: 3,187,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320,431.40 : 7,981,683.90 = 2,125,013.80 : x
  2. Step 2: Convert to fraction form
    5,320,431.40/7,981,683.90 = 2,125,013.80/x
  3. Step 3: Cross multiply
    5,320,431.40x = 7,981,683.90 × 2,125,013.80
  4. Step 4: Simplify right side
    5,320,431.40x = 16,961,188,434,737.82
  5. Step 5: Solve for x
    x = 16,961,188,434,737.82/5,320,431.40
  6. Step 6: Final answer
    x = 3,187,934.80

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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.