Home / 258,246,405.20-387,473,417.40-104,904,462.80

Finding the Fourth Proportional to 258,246,405.20, 387,473,417.40 and 104,904,462.80

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Solution

The fourth proportional to 258,246,405.20, 387,473,417.40 and 104,904,462.80 is: 157,398,863.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,246,405.20 : 387,473,417.40 = 104,904,462.80 : x
  2. Step 2: Convert to fraction form
    258,246,405.20/387,473,417.40 = 104,904,462.80/x
  3. Step 3: Cross multiply
    258,246,405.20x = 387,473,417.40 × 104,904,462.80
  4. Step 4: Simplify right side
    258,246,405.20x = 40,647,690,701,627,168
  5. Step 5: Solve for x
    x = 40,647,690,701,627,168/258,246,405.20
  6. Step 6: Final answer
    x = 157,398,863.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.