Home / 20,258,203.78-31,415,609.53

Finding the Third Proportional to 20,258,203.78 and 31,415,609.53

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Solution

The third proportional to 20,258,203.78 and 31,415,609.53 is: 48,718,066.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258,203.78 : 31,415,609.53 = 31,415,609.53 : x
  2. Step 2: Convert to fraction form
    20,258,203.78/31,415,609.53 = 31,415,609.53/x
  3. Step 3: Cross multiply
    20,258,203.78x = 31,415,609.53 × 31,415,609.53
  4. Step 4: Simplify right side
    20,258,203.78x = 986,940,522,219,965.88
  5. Step 5: Solve for x
    x = 986,940,522,219,965.88/20,258,203.78
  6. Step 6: Final answer
    x = 48,718,066.66

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.