Home / 137,246,512.88-205,876,390.26-45,128,211.50

Finding the Fourth Proportional to 137,246,512.88, 205,876,390.26 and 45,128,211.50

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Solution

The fourth proportional to 137,246,512.88, 205,876,390.26 and 45,128,211.50 is: 67,694,494.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,246,512.88 : 205,876,390.26 = 45,128,211.50 : x
  2. Step 2: Convert to fraction form
    137,246,512.88/205,876,390.26 = 45,128,211.50/x
  3. Step 3: Cross multiply
    137,246,512.88x = 205,876,390.26 × 45,128,211.50
  4. Step 4: Simplify right side
    137,246,512.88x = 9,290,833,281,480,438
  5. Step 5: Solve for x
    x = 9,290,833,281,480,438/137,246,512.88
  6. Step 6: Final answer
    x = 67,694,494.29

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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.