Home / 189,463,990.85-261,460,712.57-106,957,775.60

Finding the Fourth Proportional to 189,463,990.85, 261,460,712.57 and 106,957,775.60

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Solution

The fourth proportional to 189,463,990.85, 261,460,712.57 and 106,957,775.60 is: 147,601,959.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,463,990.85 : 261,460,712.57 = 106,957,775.60 : x
  2. Step 2: Convert to fraction form
    189,463,990.85/261,460,712.57 = 106,957,775.60/x
  3. Step 3: Cross multiply
    189,463,990.85x = 261,460,712.57 × 106,957,775.60
  4. Step 4: Simplify right side
    189,463,990.85x = 27,965,256,223,278,156
  5. Step 5: Solve for x
    x = 27,965,256,223,278,156/189,463,990.85
  6. Step 6: Final answer
    x = 147,601,959.07

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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.