Home / 405,261,778.50-559,261,732.68-219,622,794.18

Finding the Fourth Proportional to 405,261,778.50, 559,261,732.68 and 219,622,794.18

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Solution

The fourth proportional to 405,261,778.50, 559,261,732.68 and 219,622,794.18 is: 303,079,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,261,778.50 : 559,261,732.68 = 219,622,794.18 : x
  2. Step 2: Convert to fraction form
    405,261,778.50/559,261,732.68 = 219,622,794.18/x
  3. Step 3: Cross multiply
    405,261,778.50x = 559,261,732.68 × 219,622,794.18
  4. Step 4: Simplify right side
    405,261,778.50x = 122,826,624,409,129,808
  5. Step 5: Solve for x
    x = 122,826,624,409,129,808/405,261,778.50
  6. Step 6: Final answer
    x = 303,079,715.20

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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.