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Finding the Third Proportional to 13,156,980 and 20,249,266

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Solution

The third proportional to 13,156,980 and 20,249,266 is: 31,164,657.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156,980 : 20,249,266 = 20,249,266 : x
  2. Step 2: Convert to fraction form
    13,156,980/20,249,266 = 20,249,266/x
  3. Step 3: Cross multiply
    13,156,980x = 20,249,266 × 20,249,266
  4. Step 4: Simplify right side
    13,156,980x = 410,032,773,538,756
  5. Step 5: Solve for x
    x = 410,032,773,538,756/13,156,980
  6. Step 6: Final answer
    x = 31,164,657.36

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.