Home / 258,660,582.28-387,987,219.62-120,408,863.33

Finding the Fourth Proportional to 258,660,582.28, 387,987,219.62 and 120,408,863.33

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Solution

The fourth proportional to 258,660,582.28, 387,987,219.62 and 120,408,863.33 is: 180,611,594.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,660,582.28 : 387,987,219.62 = 120,408,863.33 : x
  2. Step 2: Convert to fraction form
    258,660,582.28/387,987,219.62 = 120,408,863.33/x
  3. Step 3: Cross multiply
    258,660,582.28x = 387,987,219.62 × 120,408,863.33
  4. Step 4: Simplify right side
    258,660,582.28x = 46,717,100,101,011,272
  5. Step 5: Solve for x
    x = 46,717,100,101,011,272/258,660,582.28
  6. Step 6: Final answer
    x = 180,611,594.12

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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.