Home / 12,305,835.45-16,982,472.83-7,724,682.81

Finding the Fourth Proportional to 12,305,835.45, 16,982,472.83 and 7,724,682.81

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Solution

The fourth proportional to 12,305,835.45, 16,982,472.83 and 7,724,682.81 is: 10,660,325.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305,835.45 : 16,982,472.83 = 7,724,682.81 : x
  2. Step 2: Convert to fraction form
    12,305,835.45/16,982,472.83 = 7,724,682.81/x
  3. Step 3: Cross multiply
    12,305,835.45x = 16,982,472.83 × 7,724,682.81
  4. Step 4: Simplify right side
    12,305,835.45x = 131,184,215,902,569.62
  5. Step 5: Solve for x
    x = 131,184,215,902,569.62/12,305,835.45
  6. Step 6: Final answer
    x = 10,660,325.86

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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.