Home / 210,499,792.82-315,527,027.01-79,285,295.97

Finding the Fourth Proportional to 210,499,792.82, 315,527,027.01 and 79,285,295.97

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Solution

The fourth proportional to 210,499,792.82, 315,527,027.01 and 79,285,295.97 is: 118,844,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,499,792.82 : 315,527,027.01 = 79,285,295.97 : x
  2. Step 2: Convert to fraction form
    210,499,792.82/315,527,027.01 = 79,285,295.97/x
  3. Step 3: Cross multiply
    210,499,792.82x = 315,527,027.01 × 79,285,295.97
  4. Step 4: Simplify right side
    210,499,792.82x = 25,016,653,722,724,716
  5. Step 5: Solve for x
    x = 25,016,653,722,724,716/210,499,792.82
  6. Step 6: Final answer
    x = 118,844,077.65

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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.