Home / 289,189,809.36-399,067,567.56-163,722,494.16

Finding the Fourth Proportional to 289,189,809.36, 399,067,567.56 and 163,722,494.16

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Solution

The fourth proportional to 289,189,809.36, 399,067,567.56 and 163,722,494.16 is: 225,928,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,189,809.36 : 399,067,567.56 = 163,722,494.16 : x
  2. Step 2: Convert to fraction form
    289,189,809.36/399,067,567.56 = 163,722,494.16/x
  3. Step 3: Cross multiply
    289,189,809.36x = 399,067,567.56 × 163,722,494.16
  4. Step 4: Simplify right side
    289,189,809.36x = 65,336,337,499,287,504
  5. Step 5: Solve for x
    x = 65,336,337,499,287,504/289,189,809.36
  6. Step 6: Final answer
    x = 225,928,906.84

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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.