Home / 187,605,078.92-258,895,033.47-103,978,608.53

Finding the Fourth Proportional to 187,605,078.92, 258,895,033.47 and 103,978,608.53

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Solution

The fourth proportional to 187,605,078.92, 258,895,033.47 and 103,978,608.53 is: 143,490,493.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,605,078.92 : 258,895,033.47 = 103,978,608.53 : x
  2. Step 2: Convert to fraction form
    187,605,078.92/258,895,033.47 = 103,978,608.53/x
  3. Step 3: Cross multiply
    187,605,078.92x = 258,895,033.47 × 103,978,608.53
  4. Step 4: Simplify right side
    187,605,078.92x = 26,919,545,334,243,904
  5. Step 5: Solve for x
    x = 26,919,545,334,243,904/187,605,078.92
  6. Step 6: Final answer
    x = 143,490,493.38

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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.