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Finding the Third Proportional to 38,374,820 and 78,291,154

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Solution

The third proportional to 38,374,820 and 78,291,154 is: 159,727,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,374,820 : 78,291,154 = 78,291,154 : x
  2. Step 2: Convert to fraction form
    38,374,820/78,291,154 = 78,291,154/x
  3. Step 3: Cross multiply
    38,374,820x = 78,291,154 × 78,291,154
  4. Step 4: Simplify right side
    38,374,820x = 6,129,504,794,651,716
  5. Step 5: Solve for x
    x = 6,129,504,794,651,716/38,374,820
  6. Step 6: Final answer
    x = 159,727,258.52

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.