Home / 137,667,260.40-189,974,999.40-74,942,054.34

Finding the Fourth Proportional to 137,667,260.40, 189,974,999.40 and 74,942,054.34

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Solution

The fourth proportional to 137,667,260.40, 189,974,999.40 and 74,942,054.34 is: 103,416,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,667,260.40 : 189,974,999.40 = 74,942,054.34 : x
  2. Step 2: Convert to fraction form
    137,667,260.40/189,974,999.40 = 74,942,054.34/x
  3. Step 3: Cross multiply
    137,667,260.40x = 189,974,999.40 × 74,942,054.34
  4. Step 4: Simplify right side
    137,667,260.40x = 14,237,116,728,276,268
  5. Step 5: Solve for x
    x = 14,237,116,728,276,268/137,667,260.40
  6. Step 6: Final answer
    x = 103,416,866.78

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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.