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Finding the Third Proportional to 18,664,258 and 38,818,409

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Solution

The third proportional to 18,664,258 and 38,818,409 is: 80,735,536.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664,258 : 38,818,409 = 38,818,409 : x
  2. Step 2: Convert to fraction form
    18,664,258/38,818,409 = 38,818,409/x
  3. Step 3: Cross multiply
    18,664,258x = 38,818,409 × 38,818,409
  4. Step 4: Simplify right side
    18,664,258x = 1,506,868,877,291,281
  5. Step 5: Solve for x
    x = 1,506,868,877,291,281/18,664,258
  6. Step 6: Final answer
    x = 80,735,536.19

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.