Home / 486,279,022.80-729,418,534.20-145,876,846.80

Finding the Fourth Proportional to 486,279,022.80, 729,418,534.20 and 145,876,846.80

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Solution

The fourth proportional to 486,279,022.80, 729,418,534.20 and 145,876,846.80 is: 218,815,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,279,022.80 : 729,418,534.20 = 145,876,846.80 : x
  2. Step 2: Convert to fraction form
    486,279,022.80/729,418,534.20 = 145,876,846.80/x
  3. Step 3: Cross multiply
    486,279,022.80x = 729,418,534.20 × 145,876,846.80
  4. Step 4: Simplify right side
    486,279,022.80x = 106,405,275,766,573,984
  5. Step 5: Solve for x
    x = 106,405,275,766,573,984/486,279,022.80
  6. Step 6: Final answer
    x = 218,815,270.20

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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.