Home / 278,728,819.96-384,536,906.73-159,587,738.40

Finding the Fourth Proportional to 278,728,819.96, 384,536,906.73 and 159,587,738.40

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Solution

The fourth proportional to 278,728,819.96, 384,536,906.73 and 159,587,738.40 is: 220,168,747.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,728,819.96 : 384,536,906.73 = 159,587,738.40 : x
  2. Step 2: Convert to fraction form
    278,728,819.96/384,536,906.73 = 159,587,738.40/x
  3. Step 3: Cross multiply
    278,728,819.96x = 384,536,906.73 × 159,587,738.40
  4. Step 4: Simplify right side
    278,728,819.96x = 61,367,375,276,372,448
  5. Step 5: Solve for x
    x = 61,367,375,276,372,448/278,728,819.96
  6. Step 6: Final answer
    x = 220,168,747.84

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1.5x scale

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.