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Finding the Third Proportional to 7,136,507 and 11,490,866

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Solution

The third proportional to 7,136,507 and 11,490,866 is: 18,502,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,507 : 11,490,866 = 11,490,866 : x
  2. Step 2: Convert to fraction form
    7,136,507/11,490,866 = 11,490,866/x
  3. Step 3: Cross multiply
    7,136,507x = 11,490,866 × 11,490,866
  4. Step 4: Simplify right side
    7,136,507x = 132,040,001,429,956
  5. Step 5: Solve for x
    x = 132,040,001,429,956/7,136,507
  6. Step 6: Final answer
    x = 18,502,048.89

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.