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Finding the Third Proportional to 13,156,236 and 20,247,840

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Solution

The third proportional to 13,156,236 and 20,247,840 is: 31,162,030.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156,236 : 20,247,840 = 20,247,840 : x
  2. Step 2: Convert to fraction form
    13,156,236/20,247,840 = 20,247,840/x
  3. Step 3: Cross multiply
    13,156,236x = 20,247,840 × 20,247,840
  4. Step 4: Simplify right side
    13,156,236x = 409,975,024,665,600
  5. Step 5: Solve for x
    x = 409,975,024,665,600/13,156,236
  6. Step 6: Final answer
    x = 31,162,030.28

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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.