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Finding the Third Proportional to 74,938,815 and 112,408,215

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Solution

The third proportional to 74,938,815 and 112,408,215 is: 168,612,311.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,938,815 : 112,408,215 = 112,408,215 : x
  2. Step 2: Convert to fraction form
    74,938,815/112,408,215 = 112,408,215/x
  3. Step 3: Cross multiply
    74,938,815x = 112,408,215 × 112,408,215
  4. Step 4: Simplify right side
    74,938,815x = 12,635,606,799,486,224
  5. Step 5: Solve for x
    x = 12,635,606,799,486,224/74,938,815
  6. Step 6: Final answer
    x = 168,612,311.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.