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Finding the Third Proportional to 12,934,388 and 20,290,210

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Solution

The third proportional to 12,934,388 and 20,290,210 is: 31,829,308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934,388 : 20,290,210 = 20,290,210 : x
  2. Step 2: Convert to fraction form
    12,934,388/20,290,210 = 20,290,210/x
  3. Step 3: Cross multiply
    12,934,388x = 20,290,210 × 20,290,210
  4. Step 4: Simplify right side
    12,934,388x = 411,692,621,844,100
  5. Step 5: Solve for x
    x = 411,692,621,844,100/12,934,388
  6. Step 6: Final answer
    x = 31,829,308.19

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.