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Finding the Third Proportional to 21,008,811 and 45,698,586

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Solution

The third proportional to 21,008,811 and 45,698,586 is: 99,404,043.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,811 : 45,698,586 = 45,698,586 : x
  2. Step 2: Convert to fraction form
    21,008,811/45,698,586 = 45,698,586/x
  3. Step 3: Cross multiply
    21,008,811x = 45,698,586 × 45,698,586
  4. Step 4: Simplify right side
    21,008,811x = 2,088,360,762,399,396
  5. Step 5: Solve for x
    x = 2,088,360,762,399,396/21,008,811
  6. Step 6: Final answer
    x = 99,404,043.49

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.