Home / 117,238,812.75-172,448,137.69

Finding the Third Proportional to 117,238,812.75 and 172,448,137.69

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Solution

The third proportional to 117,238,812.75 and 172,448,137.69 is: 253,656,272.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,238,812.75 : 172,448,137.69 = 172,448,137.69 : x
  2. Step 2: Convert to fraction form
    117,238,812.75/172,448,137.69 = 172,448,137.69/x
  3. Step 3: Cross multiply
    117,238,812.75x = 172,448,137.69 × 172,448,137.69
  4. Step 4: Simplify right side
    117,238,812.75x = 29,738,360,191,886,956
  5. Step 5: Solve for x
    x = 29,738,360,191,886,956/117,238,812.75
  6. Step 6: Final answer
    x = 253,656,272.14

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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.