Home / 398,663,674.80-597,995,512.20-344,137,828.20

Finding the Fourth Proportional to 398,663,674.80, 597,995,512.20 and 344,137,828.20

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Solution

The fourth proportional to 398,663,674.80, 597,995,512.20 and 344,137,828.20 is: 516,206,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,663,674.80 : 597,995,512.20 = 344,137,828.20 : x
  2. Step 2: Convert to fraction form
    398,663,674.80/597,995,512.20 = 344,137,828.20/x
  3. Step 3: Cross multiply
    398,663,674.80x = 597,995,512.20 × 344,137,828.20
  4. Step 4: Simplify right side
    398,663,674.80x = 205,792,876,841,854,624
  5. Step 5: Solve for x
    x = 205,792,876,841,854,624/398,663,674.80
  6. Step 6: Final answer
    x = 516,206,742.30

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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.