Home / 259,111,881.53-388,667,822.31-86,588,695.01

Finding the Fourth Proportional to 259,111,881.53, 388,667,822.31 and 86,588,695.01

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Solution

The fourth proportional to 259,111,881.53, 388,667,822.31 and 86,588,695.01 is: 129,883,042.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,111,881.53 : 388,667,822.31 = 86,588,695.01 : x
  2. Step 2: Convert to fraction form
    259,111,881.53/388,667,822.31 = 86,588,695.01/x
  3. Step 3: Cross multiply
    259,111,881.53x = 388,667,822.31 × 86,588,695.01
  4. Step 4: Simplify right side
    259,111,881.53x = 33,654,239,526,201,464
  5. Step 5: Solve for x
    x = 33,654,239,526,201,464/259,111,881.53
  6. Step 6: Final answer
    x = 129,883,042.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.