Home / 203,553,719.70-305,214,908.85-138,935,742.90

Finding the Fourth Proportional to 203,553,719.70, 305,214,908.85 and 138,935,742.90

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Solution

The fourth proportional to 203,553,719.70, 305,214,908.85 and 138,935,742.90 is: 208,324,663.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,553,719.70 : 305,214,908.85 = 138,935,742.90 : x
  2. Step 2: Convert to fraction form
    203,553,719.70/305,214,908.85 = 138,935,742.90/x
  3. Step 3: Cross multiply
    203,553,719.70x = 305,214,908.85 × 138,935,742.90
  4. Step 4: Simplify right side
    203,553,719.70x = 42,405,260,105,230,536
  5. Step 5: Solve for x
    x = 42,405,260,105,230,536/203,553,719.70
  6. Step 6: Final answer
    x = 208,324,663.23

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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.