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Finding the Third Proportional to 18,897,988.50 and 40,472,703

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Solution

The third proportional to 18,897,988.50 and 40,472,703 is: 86,677,991.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897,988.50 : 40,472,703 = 40,472,703 : x
  2. Step 2: Convert to fraction form
    18,897,988.50/40,472,703 = 40,472,703/x
  3. Step 3: Cross multiply
    18,897,988.50x = 40,472,703 × 40,472,703
  4. Step 4: Simplify right side
    18,897,988.50x = 1,638,039,688,126,209
  5. Step 5: Solve for x
    x = 1,638,039,688,126,209/18,897,988.50
  6. Step 6: Final answer
    x = 86,677,991.58

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.