Home / 288,939,784.88-398,717,273.36-158,567,990.96

Finding the Fourth Proportional to 288,939,784.88, 398,717,273.36 and 158,567,990.96

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Solution

The fourth proportional to 288,939,784.88, 398,717,273.36 and 158,567,990.96 is: 218,813,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,939,784.88 : 398,717,273.36 = 158,567,990.96 : x
  2. Step 2: Convert to fraction form
    288,939,784.88/398,717,273.36 = 158,567,990.96/x
  3. Step 3: Cross multiply
    288,939,784.88x = 398,717,273.36 × 158,567,990.96
  4. Step 4: Simplify right side
    288,939,784.88x = 63,223,796,997,744,336
  5. Step 5: Solve for x
    x = 63,223,796,997,744,336/288,939,784.88
  6. Step 6: Final answer
    x = 218,813,054.85

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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.