Home / 137,246,672.72-205,876,630.25-45,128,371.40

Finding the Fourth Proportional to 137,246,672.72, 205,876,630.25 and 45,128,371.40

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Solution

The fourth proportional to 137,246,672.72, 205,876,630.25 and 45,128,371.40 is: 67,694,734.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,246,672.72 : 205,876,630.25 = 45,128,371.40 : x
  2. Step 2: Convert to fraction form
    137,246,672.72/205,876,630.25 = 45,128,371.40/x
  3. Step 3: Cross multiply
    137,246,672.72x = 205,876,630.25 × 45,128,371.40
  4. Step 4: Simplify right side
    137,246,672.72x = 9,290,877,031,585,914
  5. Step 5: Solve for x
    x = 9,290,877,031,585,914/137,246,672.72
  6. Step 6: Final answer
    x = 67,694,734.22

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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.