Home / 187,856,021.73-281,792,889.95-155,005,660.56

Finding the Fourth Proportional to 187,856,021.73, 281,792,889.95 and 155,005,660.56

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Solution

The fourth proportional to 187,856,021.73, 281,792,889.95 and 155,005,660.56 is: 232,515,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,856,021.73 : 281,792,889.95 = 155,005,660.56 : x
  2. Step 2: Convert to fraction form
    187,856,021.73/281,792,889.95 = 155,005,660.56/x
  3. Step 3: Cross multiply
    187,856,021.73x = 281,792,889.95 × 155,005,660.56
  4. Step 4: Simplify right side
    187,856,021.73x = 43,679,493,047,036,104
  5. Step 5: Solve for x
    x = 43,679,493,047,036,104/187,856,021.73
  6. Step 6: Final answer
    x = 232,515,799.31

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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.