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Finding the Third Proportional to 18,970,658 and 40,818,564

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Solution

The third proportional to 18,970,658 and 40,818,564 is: 87,828,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970,658 : 40,818,564 = 40,818,564 : x
  2. Step 2: Convert to fraction form
    18,970,658/40,818,564 = 40,818,564/x
  3. Step 3: Cross multiply
    18,970,658x = 40,818,564 × 40,818,564
  4. Step 4: Simplify right side
    18,970,658x = 1,666,155,167,022,096
  5. Step 5: Solve for x
    x = 1,666,155,167,022,096/18,970,658
  6. Step 6: Final answer
    x = 87,828,011.40

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.