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Finding the Third Proportional to 17,880,639 and 38,618,802

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Solution

The third proportional to 17,880,639 and 38,618,802 is: 83,409,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,880,639 : 38,618,802 = 38,618,802 : x
  2. Step 2: Convert to fraction form
    17,880,639/38,618,802 = 38,618,802/x
  3. Step 3: Cross multiply
    17,880,639x = 38,618,802 × 38,618,802
  4. Step 4: Simplify right side
    17,880,639x = 1,491,411,867,915,204
  5. Step 5: Solve for x
    x = 1,491,411,867,915,204/17,880,639
  6. Step 6: Final answer
    x = 83,409,315.96

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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.