Home / 278,137,876.20-417,206,814.30-202,640,404.20

Finding the Fourth Proportional to 278,137,876.20, 417,206,814.30 and 202,640,404.20

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Solution

The fourth proportional to 278,137,876.20, 417,206,814.30 and 202,640,404.20 is: 303,960,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,137,876.20 : 417,206,814.30 = 202,640,404.20 : x
  2. Step 2: Convert to fraction form
    278,137,876.20/417,206,814.30 = 202,640,404.20/x
  3. Step 3: Cross multiply
    278,137,876.20x = 417,206,814.30 × 202,640,404.20
  4. Step 4: Simplify right side
    278,137,876.20x = 84,542,957,484,746,336
  5. Step 5: Solve for x
    x = 84,542,957,484,746,336/278,137,876.20
  6. Step 6: Final answer
    x = 303,960,606.30

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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.