Home / 405,903,961.94-560,147,467.52-220,264,977.63

Finding the Fourth Proportional to 405,903,961.94, 560,147,467.52 and 220,264,977.63

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Solution

The fourth proportional to 405,903,961.94, 560,147,467.52 and 220,264,977.63 is: 303,965,669.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,903,961.94 : 560,147,467.52 = 220,264,977.63 : x
  2. Step 2: Convert to fraction form
    405,903,961.94/560,147,467.52 = 220,264,977.63/x
  3. Step 3: Cross multiply
    405,903,961.94x = 560,147,467.52 × 220,264,977.63
  4. Step 4: Simplify right side
    405,903,961.94x = 123,380,869,401,692,624
  5. Step 5: Solve for x
    x = 123,380,869,401,692,624/405,903,961.94
  6. Step 6: Final answer
    x = 303,965,669.15

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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.