Home / 405,999,665.46-560,279,952.99-220,360,719.42

Finding the Fourth Proportional to 405,999,665.46, 560,279,952.99 and 220,360,719.42

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Solution

The fourth proportional to 405,999,665.46, 560,279,952.99 and 220,360,719.42 is: 304,098,017.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,999,665.46 : 560,279,952.99 = 220,360,719.42 : x
  2. Step 2: Convert to fraction form
    405,999,665.46/560,279,952.99 = 220,360,719.42/x
  3. Step 3: Cross multiply
    405,999,665.46x = 560,279,952.99 × 220,360,719.42
  4. Step 4: Simplify right side
    405,999,665.46x = 123,463,693,517,480,176
  5. Step 5: Solve for x
    x = 123,463,693,517,480,176/405,999,665.46
  6. Step 6: Final answer
    x = 304,098,017.86

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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.