Home / 30,782,490.20-42,469,521.81-17,729,487.80

Finding the Fourth Proportional to 30,782,490.20, 42,469,521.81 and 17,729,487.80

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Solution

The fourth proportional to 30,782,490.20, 42,469,521.81 and 17,729,487.80 is: 24,460,752.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,782,490.20 : 42,469,521.81 = 17,729,487.80 : x
  2. Step 2: Convert to fraction form
    30,782,490.20/42,469,521.81 = 17,729,487.80/x
  3. Step 3: Cross multiply
    30,782,490.20x = 42,469,521.81 × 17,729,487.80
  4. Step 4: Simplify right side
    30,782,490.20x = 752,962,868,802,229
  5. Step 5: Solve for x
    x = 752,962,868,802,229/30,782,490.20
  6. Step 6: Final answer
    x = 24,460,752.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.