Home / 278,221,285.35-419,331,741.14-239,823,193.23

Finding the Fourth Proportional to 278,221,285.35, 419,331,741.14 and 239,823,193.23

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Solution

The fourth proportional to 278,221,285.35, 419,331,741.14 and 239,823,193.23 is: 361,458,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,221,285.35 : 419,331,741.14 = 239,823,193.23 : x
  2. Step 2: Convert to fraction form
    278,221,285.35/419,331,741.14 = 239,823,193.23/x
  3. Step 3: Cross multiply
    278,221,285.35x = 419,331,741.14 × 239,823,193.23
  4. Step 4: Simplify right side
    278,221,285.35x = 100,565,477,183,490,112
  5. Step 5: Solve for x
    x = 100,565,477,183,490,112/278,221,285.35
  6. Step 6: Final answer
    x = 361,458,603.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.