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Finding the Third Proportional to 56,438,478 and 82,479,987

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Solution

The third proportional to 56,438,478 and 82,479,987 is: 120,537,415.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,438,478 : 82,479,987 = 82,479,987 : x
  2. Step 2: Convert to fraction form
    56,438,478/82,479,987 = 82,479,987/x
  3. Step 3: Cross multiply
    56,438,478x = 82,479,987 × 82,479,987
  4. Step 4: Simplify right side
    56,438,478x = 6,802,948,255,520,169
  5. Step 5: Solve for x
    x = 6,802,948,255,520,169/56,438,478
  6. Step 6: Final answer
    x = 120,537,415.19

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.