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Finding the Third Proportional to 12,979,228.50 and 19,812,087

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Solution

The third proportional to 12,979,228.50 and 19,812,087 is: 30,242,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979,228.50 : 19,812,087 = 19,812,087 : x
  2. Step 2: Convert to fraction form
    12,979,228.50/19,812,087 = 19,812,087/x
  3. Step 3: Cross multiply
    12,979,228.50x = 19,812,087 × 19,812,087
  4. Step 4: Simplify right side
    12,979,228.50x = 392,518,791,295,569
  5. Step 5: Solve for x
    x = 392,518,791,295,569/12,979,228.50
  6. Step 6: Final answer
    x = 30,242,074.20

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.