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Finding the Third Proportional to 18,887,280 and 40,664,184

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Solution

The third proportional to 18,887,280 and 40,664,184 is: 87,549,708.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,280 : 40,664,184 = 40,664,184 : x
  2. Step 2: Convert to fraction form
    18,887,280/40,664,184 = 40,664,184/x
  3. Step 3: Cross multiply
    18,887,280x = 40,664,184 × 40,664,184
  4. Step 4: Simplify right side
    18,887,280x = 1,653,575,860,385,856
  5. Step 5: Solve for x
    x = 1,653,575,860,385,856/18,887,280
  6. Step 6: Final answer
    x = 87,549,708.61

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.