Home / 187,040,666.79-258,104,982.54-103,403,786.31

Finding the Fourth Proportional to 187,040,666.79, 258,104,982.54 and 103,403,786.31

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Solution

The fourth proportional to 187,040,666.79, 258,104,982.54 and 103,403,786.31 is: 142,691,067.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,040,666.79 : 258,104,982.54 = 103,403,786.31 : x
  2. Step 2: Convert to fraction form
    187,040,666.79/258,104,982.54 = 103,403,786.31/x
  3. Step 3: Cross multiply
    187,040,666.79x = 258,104,982.54 × 103,403,786.31
  4. Step 4: Simplify right side
    187,040,666.79x = 26,689,032,460,112,440
  5. Step 5: Solve for x
    x = 26,689,032,460,112,440/187,040,666.79
  6. Step 6: Final answer
    x = 142,691,067.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.