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Finding the Third Proportional to 18,521,710 and 20,736,046

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Solution

The third proportional to 18,521,710 and 20,736,046 is: 23,215,113.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521,710 : 20,736,046 = 20,736,046 : x
  2. Step 2: Convert to fraction form
    18,521,710/20,736,046 = 20,736,046/x
  3. Step 3: Cross multiply
    18,521,710x = 20,736,046 × 20,736,046
  4. Step 4: Simplify right side
    18,521,710x = 429,983,603,714,116
  5. Step 5: Solve for x
    x = 429,983,603,714,116/18,521,710
  6. Step 6: Final answer
    x = 23,215,113.71

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.