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Finding the Third Proportional to 13,156,986 and 20,249,275

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Solution

The third proportional to 13,156,986 and 20,249,275 is: 31,164,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156,986 : 20,249,275 = 20,249,275 : x
  2. Step 2: Convert to fraction form
    13,156,986/20,249,275 = 20,249,275/x
  3. Step 3: Cross multiply
    13,156,986x = 20,249,275 × 20,249,275
  4. Step 4: Simplify right side
    13,156,986x = 410,033,138,025,625
  5. Step 5: Solve for x
    x = 410,033,138,025,625/13,156,986
  6. Step 6: Final answer
    x = 31,164,670.85

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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.