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Finding the Third Proportional to 18,527,781 and 40,824,978

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Solution

The third proportional to 18,527,781 and 40,824,978 is: 89,955,663.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,527,781 : 40,824,978 = 40,824,978 : x
  2. Step 2: Convert to fraction form
    18,527,781/40,824,978 = 40,824,978/x
  3. Step 3: Cross multiply
    18,527,781x = 40,824,978 × 40,824,978
  4. Step 4: Simplify right side
    18,527,781x = 1,666,678,828,700,484
  5. Step 5: Solve for x
    x = 1,666,678,828,700,484/18,527,781
  6. Step 6: Final answer
    x = 89,955,663.27

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.