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Finding the Third Proportional to 28,728,558 and 40,311,855

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Solution

The third proportional to 28,728,558 and 40,311,855 is: 56,565,514.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728,558 : 40,311,855 = 40,311,855 : x
  2. Step 2: Convert to fraction form
    28,728,558/40,311,855 = 40,311,855/x
  3. Step 3: Cross multiply
    28,728,558x = 40,311,855 × 40,311,855
  4. Step 4: Simplify right side
    28,728,558x = 1,625,045,653,541,025
  5. Step 5: Solve for x
    x = 1,625,045,653,541,025/28,728,558
  6. Step 6: Final answer
    x = 56,565,514.13

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.