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Finding the Third Proportional to 21,008,888 and 45,698,740

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Solution

The third proportional to 21,008,888 and 45,698,740 is: 99,404,349.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,888 : 45,698,740 = 45,698,740 : x
  2. Step 2: Convert to fraction form
    21,008,888/45,698,740 = 45,698,740/x
  3. Step 3: Cross multiply
    21,008,888x = 45,698,740 × 45,698,740
  4. Step 4: Simplify right side
    21,008,888x = 2,088,374,837,587,600
  5. Step 5: Solve for x
    x = 2,088,374,837,587,600/21,008,888
  6. Step 6: Final answer
    x = 99,404,349.13

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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.