Home / 151,422,123.09-328,687,121.53

Finding the Third Proportional to 151,422,123.09 and 328,687,121.53

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Solution

The third proportional to 151,422,123.09 and 328,687,121.53 is: 713,470,539.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,422,123.09 : 328,687,121.53 = 328,687,121.53 : x
  2. Step 2: Convert to fraction form
    151,422,123.09/328,687,121.53 = 328,687,121.53/x
  3. Step 3: Cross multiply
    151,422,123.09x = 328,687,121.53 × 328,687,121.53
  4. Step 4: Simplify right side
    151,422,123.09x = 108,035,223,860,498,704
  5. Step 5: Solve for x
    x = 108,035,223,860,498,704/151,422,123.09
  6. Step 6: Final answer
    x = 713,470,539.53

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.