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Finding the Third Proportional to 13,808,931 and 20,713,389

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Solution

The third proportional to 13,808,931 and 20,713,389 is: 31,070,072.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808,931 : 20,713,389 = 20,713,389 : x
  2. Step 2: Convert to fraction form
    13,808,931/20,713,389 = 20,713,389/x
  3. Step 3: Cross multiply
    13,808,931x = 20,713,389 × 20,713,389
  4. Step 4: Simplify right side
    13,808,931x = 429,044,483,865,321
  5. Step 5: Solve for x
    x = 429,044,483,865,321/13,808,931
  6. Step 6: Final answer
    x = 31,070,072.25

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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.