Home / 387,985,514.40-582,202,220.40-145,672,912.80

Finding the Fourth Proportional to 387,985,514.40, 582,202,220.40 and 145,672,912.80

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Solution

The fourth proportional to 387,985,514.40, 582,202,220.40 and 145,672,912.80 is: 218,593,452.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,985,514.40 : 582,202,220.40 = 145,672,912.80 : x
  2. Step 2: Convert to fraction form
    387,985,514.40/582,202,220.40 = 145,672,912.80/x
  3. Step 3: Cross multiply
    387,985,514.40x = 582,202,220.40 × 145,672,912.80
  4. Step 4: Simplify right side
    387,985,514.40x = 84,811,093,284,295,584
  5. Step 5: Solve for x
    x = 84,811,093,284,295,584/387,985,514.40
  6. Step 6: Final answer
    x = 218,593,452.94

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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.