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Finding the Third Proportional to 8,423,853 and 12,939,963

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Solution

The third proportional to 8,423,853 and 12,939,963 is: 19,877,203.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423,853 : 12,939,963 = 12,939,963 : x
  2. Step 2: Convert to fraction form
    8,423,853/12,939,963 = 12,939,963/x
  3. Step 3: Cross multiply
    8,423,853x = 12,939,963 × 12,939,963
  4. Step 4: Simplify right side
    8,423,853x = 167,442,642,441,369
  5. Step 5: Solve for x
    x = 167,442,642,441,369/8,423,853
  6. Step 6: Final answer
    x = 19,877,203.75

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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.