Home / 90,290,163.38-138,349,609.88

Finding the Third Proportional to 90,290,163.38 and 138,349,609.88

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Solution

The third proportional to 90,290,163.38 and 138,349,609.88 is: 211,990,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,290,163.38 : 138,349,609.88 = 138,349,609.88 : x
  2. Step 2: Convert to fraction form
    90,290,163.38/138,349,609.88 = 138,349,609.88/x
  3. Step 3: Cross multiply
    90,290,163.38x = 138,349,609.88 × 138,349,609.88
  4. Step 4: Simplify right side
    90,290,163.38x = 19,140,614,552,564,696
  5. Step 5: Solve for x
    x = 19,140,614,552,564,696/90,290,163.38
  6. Step 6: Final answer
    x = 211,990,031.22

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.