Home / 405,985,777.39-560,265,747.57-220,349,018.35

Finding the Fourth Proportional to 405,985,777.39, 560,265,747.57 and 220,349,018.35

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Solution

The fourth proportional to 405,985,777.39, 560,265,747.57 and 220,349,018.35 is: 304,084,562.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,985,777.39 : 560,265,747.57 = 220,349,018.35 : x
  2. Step 2: Convert to fraction form
    405,985,777.39/560,265,747.57 = 220,349,018.35/x
  3. Step 3: Cross multiply
    405,985,777.39x = 560,265,747.57 × 220,349,018.35
  4. Step 4: Simplify right side
    405,985,777.39x = 123,454,007,488,275,344
  5. Step 5: Solve for x
    x = 123,454,007,488,275,344/405,985,777.39
  6. Step 6: Final answer
    x = 304,084,562.48

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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.