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Finding the Third Proportional to 3,178,657 and 6,899,330

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Solution

The third proportional to 3,178,657 and 6,899,330 is: 14,975,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,657 : 6,899,330 = 6,899,330 : x
  2. Step 2: Convert to fraction form
    3,178,657/6,899,330 = 6,899,330/x
  3. Step 3: Cross multiply
    3,178,657x = 6,899,330 × 6,899,330
  4. Step 4: Simplify right side
    3,178,657x = 47,600,754,448,900
  5. Step 5: Solve for x
    x = 47,600,754,448,900/3,178,657
  6. Step 6: Final answer
    x = 14,975,115.10

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.