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Finding the Third Proportional to 40,605,878 and 87,683,634

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Solution

The third proportional to 40,605,878 and 87,683,634 is: 189,342,529.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,605,878 : 87,683,634 = 87,683,634 : x
  2. Step 2: Convert to fraction form
    40,605,878/87,683,634 = 87,683,634/x
  3. Step 3: Cross multiply
    40,605,878x = 87,683,634 × 87,683,634
  4. Step 4: Simplify right side
    40,605,878x = 7,688,419,671,445,956
  5. Step 5: Solve for x
    x = 7,688,419,671,445,956/40,605,878
  6. Step 6: Final answer
    x = 189,342,529.95

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.