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Finding the Third Proportional to 8,423,850 and 12,939,957

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Solution

The third proportional to 8,423,850 and 12,939,957 is: 19,877,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423,850 : 12,939,957 = 12,939,957 : x
  2. Step 2: Convert to fraction form
    8,423,850/12,939,957 = 12,939,957/x
  3. Step 3: Cross multiply
    8,423,850x = 12,939,957 × 12,939,957
  4. Step 4: Simplify right side
    8,423,850x = 167,442,487,161,849
  5. Step 5: Solve for x
    x = 167,442,487,161,849/8,423,850
  6. Step 6: Final answer
    x = 19,877,192.40

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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.