Home / 137,141,608.41-189,201,542.31-78,372,744.75

Finding the Fourth Proportional to 137,141,608.41, 189,201,542.31 and 78,372,744.75

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Solution

The fourth proportional to 137,141,608.41, 189,201,542.31 and 78,372,744.75 is: 108,123,598.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,141,608.41 : 189,201,542.31 = 78,372,744.75 : x
  2. Step 2: Convert to fraction form
    137,141,608.41/189,201,542.31 = 78,372,744.75/x
  3. Step 3: Cross multiply
    137,141,608.41x = 189,201,542.31 × 78,372,744.75
  4. Step 4: Simplify right side
    137,141,608.41x = 14,828,244,181,767,956
  5. Step 5: Solve for x
    x = 14,828,244,181,767,956/137,141,608.41
  6. Step 6: Final answer
    x = 108,123,598.33

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