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Finding the Third Proportional to 115,129,174 and 187,975,678

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Solution

The third proportional to 115,129,174 and 187,975,678 is: 306,914,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,129,174 : 187,975,678 = 187,975,678 : x
  2. Step 2: Convert to fraction form
    115,129,174/187,975,678 = 187,975,678/x
  3. Step 3: Cross multiply
    115,129,174x = 187,975,678 × 187,975,678
  4. Step 4: Simplify right side
    115,129,174x = 35,334,855,519,559,684
  5. Step 5: Solve for x
    x = 35,334,855,519,559,684/115,129,174
  6. Step 6: Final answer
    x = 306,914,870.42

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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.