Home / 288,939,789.88-398,717,280.26-158,567,995.96

Finding the Fourth Proportional to 288,939,789.88, 398,717,280.26 and 158,567,995.96

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Solution

The fourth proportional to 288,939,789.88, 398,717,280.26 and 158,567,995.96 is: 218,813,061.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,939,789.88 : 398,717,280.26 = 158,567,995.96 : x
  2. Step 2: Convert to fraction form
    288,939,789.88/398,717,280.26 = 158,567,995.96/x
  3. Step 3: Cross multiply
    288,939,789.88x = 398,717,280.26 × 158,567,995.96
  4. Step 4: Simplify right side
    288,939,789.88x = 63,223,800,085,449,872
  5. Step 5: Solve for x
    x = 63,223,800,085,449,872/288,939,789.88
  6. Step 6: Final answer
    x = 218,813,061.75

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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.