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Finding the Third Proportional to 18,897,220 and 29,316,902

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Solution

The third proportional to 18,897,220 and 29,316,902 is: 45,481,861.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897,220 : 29,316,902 = 29,316,902 : x
  2. Step 2: Convert to fraction form
    18,897,220/29,316,902 = 29,316,902/x
  3. Step 3: Cross multiply
    18,897,220x = 29,316,902 × 29,316,902
  4. Step 4: Simplify right side
    18,897,220x = 859,480,742,877,604
  5. Step 5: Solve for x
    x = 859,480,742,877,604/18,897,220
  6. Step 6: Final answer
    x = 45,481,861.51

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.