Home / 217,225,029.06-299,780,788.55-123,140,999.49

Finding the Fourth Proportional to 217,225,029.06, 299,780,788.55 and 123,140,999.49

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Solution

The fourth proportional to 217,225,029.06, 299,780,788.55 and 123,140,999.49 is: 169,940,388.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,225,029.06 : 299,780,788.55 = 123,140,999.49 : x
  2. Step 2: Convert to fraction form
    217,225,029.06/299,780,788.55 = 123,140,999.49/x
  3. Step 3: Cross multiply
    217,225,029.06x = 299,780,788.55 × 123,140,999.49
  4. Step 4: Simplify right side
    217,225,029.06x = 36,915,305,929,331,640
  5. Step 5: Solve for x
    x = 36,915,305,929,331,640/217,225,029.06
  6. Step 6: Final answer
    x = 169,940,388.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.