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Finding the Third Proportional to 7,478,192 and 12,210,006

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Solution

The third proportional to 7,478,192 and 12,210,006 is: 19,935,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478,192 : 12,210,006 = 12,210,006 : x
  2. Step 2: Convert to fraction form
    7,478,192/12,210,006 = 12,210,006/x
  3. Step 3: Cross multiply
    7,478,192x = 12,210,006 × 12,210,006
  4. Step 4: Simplify right side
    7,478,192x = 149,084,246,520,036
  5. Step 5: Solve for x
    x = 149,084,246,520,036/7,478,192
  6. Step 6: Final answer
    x = 19,935,867.72

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.