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Finding the Third Proportional to 31,971,159 and 69,318,963

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Solution

The third proportional to 31,971,159 and 69,318,963 is: 150,295,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,971,159 : 69,318,963 = 69,318,963 : x
  2. Step 2: Convert to fraction form
    31,971,159/69,318,963 = 69,318,963/x
  3. Step 3: Cross multiply
    31,971,159x = 69,318,963 × 69,318,963
  4. Step 4: Simplify right side
    31,971,159x = 4,805,118,631,395,369
  5. Step 5: Solve for x
    x = 4,805,118,631,395,369/31,971,159
  6. Step 6: Final answer
    x = 150,295,415.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.