Home / 135,015,236.78-186,321,921.27-73,135,574.78

Finding the Fourth Proportional to 135,015,236.78, 186,321,921.27 and 73,135,574.78

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Solution

The fourth proportional to 135,015,236.78, 186,321,921.27 and 73,135,574.78 is: 100,927,577.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,015,236.78 : 186,321,921.27 = 73,135,574.78 : x
  2. Step 2: Convert to fraction form
    135,015,236.78/186,321,921.27 = 73,135,574.78/x
  3. Step 3: Cross multiply
    135,015,236.78x = 186,321,921.27 × 73,135,574.78
  4. Step 4: Simplify right side
    135,015,236.78x = 13,626,760,806,195,358
  5. Step 5: Solve for x
    x = 13,626,760,806,195,358/135,015,236.78
  6. Step 6: Final answer
    x = 100,927,577.74

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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.