Home / 291,876,565.20-402,789,647.52-159,717,572.88

Finding the Fourth Proportional to 291,876,565.20, 402,789,647.52 and 159,717,572.88

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Solution

The fourth proportional to 291,876,565.20, 402,789,647.52 and 159,717,572.88 is: 220,410,243.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,876,565.20 : 402,789,647.52 = 159,717,572.88 : x
  2. Step 2: Convert to fraction form
    291,876,565.20/402,789,647.52 = 159,717,572.88/x
  3. Step 3: Cross multiply
    291,876,565.20x = 402,789,647.52 × 159,717,572.88
  4. Step 4: Simplify right side
    291,876,565.20x = 64,332,584,883,085,104
  5. Step 5: Solve for x
    x = 64,332,584,883,085,104/291,876,565.20
  6. Step 6: Final answer
    x = 220,410,243.76

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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.