Home / 393,660,460.80-590,490,691.20-229,729,939.20

Finding the Fourth Proportional to 393,660,460.80, 590,490,691.20 and 229,729,939.20

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Solution

The fourth proportional to 393,660,460.80, 590,490,691.20 and 229,729,939.20 is: 344,594,908.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,660,460.80 : 590,490,691.20 = 229,729,939.20 : x
  2. Step 2: Convert to fraction form
    393,660,460.80/590,490,691.20 = 229,729,939.20/x
  3. Step 3: Cross multiply
    393,660,460.80x = 590,490,691.20 × 229,729,939.20
  4. Step 4: Simplify right side
    393,660,460.80x = 135,653,390,587,541,984
  5. Step 5: Solve for x
    x = 135,653,390,587,541,984/393,660,460.80
  6. Step 6: Final answer
    x = 344,594,908.80

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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.