Home / 405,980,589.80-560,253,754.52-220,341,605.48

Finding the Fourth Proportional to 405,980,589.80, 560,253,754.52 and 220,341,605.48

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Solution

The fourth proportional to 405,980,589.80, 560,253,754.52 and 220,341,605.48 is: 304,071,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,980,589.80 : 560,253,754.52 = 220,341,605.48 : x
  2. Step 2: Convert to fraction form
    405,980,589.80/560,253,754.52 = 220,341,605.48/x
  3. Step 3: Cross multiply
    405,980,589.80x = 560,253,754.52 × 220,341,605.48
  4. Step 4: Simplify right side
    405,980,589.80x = 123,447,211,747,134,592
  5. Step 5: Solve for x
    x = 123,447,211,747,134,592/405,980,589.80
  6. Step 6: Final answer
    x = 304,071,708.97

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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.