Home / 247,253,640.30-371,048,422.05-138,078,600.30

Finding the Fourth Proportional to 247,253,640.30, 371,048,422.05 and 138,078,600.30

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Solution

The fourth proportional to 247,253,640.30, 371,048,422.05 and 138,078,600.30 is: 207,211,698.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,253,640.30 : 371,048,422.05 = 138,078,600.30 : x
  2. Step 2: Convert to fraction form
    247,253,640.30/371,048,422.05 = 138,078,600.30/x
  3. Step 3: Cross multiply
    247,253,640.30x = 371,048,422.05 × 138,078,600.30
  4. Step 4: Simplify right side
    247,253,640.30x = 51,233,846,760,187,664
  5. Step 5: Solve for x
    x = 51,233,846,760,187,664/247,253,640.30
  6. Step 6: Final answer
    x = 207,211,698.47

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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.