Home / 193,538,246.70-290,307,370.05-145,165,305.90

Finding the Fourth Proportional to 193,538,246.70, 290,307,370.05 and 145,165,305.90

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Solution

The fourth proportional to 193,538,246.70, 290,307,370.05 and 145,165,305.90 is: 217,747,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,538,246.70 : 290,307,370.05 = 145,165,305.90 : x
  2. Step 2: Convert to fraction form
    193,538,246.70/290,307,370.05 = 145,165,305.90/x
  3. Step 3: Cross multiply
    193,538,246.70x = 290,307,370.05 × 145,165,305.90
  4. Step 4: Simplify right side
    193,538,246.70x = 42,142,558,178,332,752
  5. Step 5: Solve for x
    x = 42,142,558,178,332,752/193,538,246.70
  6. Step 6: Final answer
    x = 217,747,958.85

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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.