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Finding the Third Proportional to 139,846,975.88 and 219,378,638.25

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Solution

The third proportional to 139,846,975.88 and 219,378,638.25 is: 344,140,347.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,846,975.88 : 219,378,638.25 = 219,378,638.25 : x
  2. Step 2: Convert to fraction form
    139,846,975.88/219,378,638.25 = 219,378,638.25/x
  3. Step 3: Cross multiply
    139,846,975.88x = 219,378,638.25 × 219,378,638.25
  4. Step 4: Simplify right side
    139,846,975.88x = 48,126,986,920,424,360
  5. Step 5: Solve for x
    x = 48,126,986,920,424,360/139,846,975.88
  6. Step 6: Final answer
    x = 344,140,347.83

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.