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Finding the Third Proportional to 13,688,040 and 21,192,156

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Solution

The third proportional to 13,688,040 and 21,192,156 is: 32,810,210.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688,040 : 21,192,156 = 21,192,156 : x
  2. Step 2: Convert to fraction form
    13,688,040/21,192,156 = 21,192,156/x
  3. Step 3: Cross multiply
    13,688,040x = 21,192,156 × 21,192,156
  4. Step 4: Simplify right side
    13,688,040x = 449,107,475,928,336
  5. Step 5: Solve for x
    x = 449,107,475,928,336/13,688,040
  6. Step 6: Final answer
    x = 32,810,210.66

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.