Home / 315,217,609.70-472,826,414.55-194,285,257.70

Finding the Fourth Proportional to 315,217,609.70, 472,826,414.55 and 194,285,257.70

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Solution

The fourth proportional to 315,217,609.70, 472,826,414.55 and 194,285,257.70 is: 291,427,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,217,609.70 : 472,826,414.55 = 194,285,257.70 : x
  2. Step 2: Convert to fraction form
    315,217,609.70/472,826,414.55 = 194,285,257.70/x
  3. Step 3: Cross multiply
    315,217,609.70x = 472,826,414.55 × 194,285,257.70
  4. Step 4: Simplify right side
    315,217,609.70x = 91,863,201,798,213,776
  5. Step 5: Solve for x
    x = 91,863,201,798,213,776/315,217,609.70
  6. Step 6: Final answer
    x = 291,427,886.55

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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.