Home / 398,639,387.40-597,959,081.10-395,952,001.80

Finding the Fourth Proportional to 398,639,387.40, 597,959,081.10 and 395,952,001.80

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Solution

The fourth proportional to 398,639,387.40, 597,959,081.10 and 395,952,001.80 is: 593,928,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,639,387.40 : 597,959,081.10 = 395,952,001.80 : x
  2. Step 2: Convert to fraction form
    398,639,387.40/597,959,081.10 = 395,952,001.80/x
  3. Step 3: Cross multiply
    398,639,387.40x = 597,959,081.10 × 395,952,001.80
  4. Step 4: Simplify right side
    398,639,387.40x = 236,763,095,156,033,568
  5. Step 5: Solve for x
    x = 236,763,095,156,033,568/398,639,387.40
  6. Step 6: Final answer
    x = 593,928,002.70

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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.