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Finding the Third Proportional to 91,351,866 and 215,581,121

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Solution

The third proportional to 91,351,866 and 215,581,121 is: 508,749,539.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,351,866 : 215,581,121 = 215,581,121 : x
  2. Step 2: Convert to fraction form
    91,351,866/215,581,121 = 215,581,121/x
  3. Step 3: Cross multiply
    91,351,866x = 215,581,121 × 215,581,121
  4. Step 4: Simplify right side
    91,351,866x = 46,475,219,731,616,640
  5. Step 5: Solve for x
    x = 46,475,219,731,616,640/91,351,866
  6. Step 6: Final answer
    x = 508,749,539.19

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.