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Finding the Third Proportional to 5,421,389 and 7,951,011

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Solution

The third proportional to 5,421,389 and 7,951,011 is: 11,660,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421,389 : 7,951,011 = 7,951,011 : x
  2. Step 2: Convert to fraction form
    5,421,389/7,951,011 = 7,951,011/x
  3. Step 3: Cross multiply
    5,421,389x = 7,951,011 × 7,951,011
  4. Step 4: Simplify right side
    5,421,389x = 63,218,575,922,121
  5. Step 5: Solve for x
    x = 63,218,575,922,121/5,421,389
  6. Step 6: Final answer
    x = 11,660,955.51

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.