Home / 290,303,832.91-400,619,112.80-159,923,640.91

Finding the Fourth Proportional to 290,303,832.91, 400,619,112.80 and 159,923,640.91

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Solution

The fourth proportional to 290,303,832.91, 400,619,112.80 and 159,923,640.91 is: 220,694,527.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,303,832.91 : 400,619,112.80 = 159,923,640.91 : x
  2. Step 2: Convert to fraction form
    290,303,832.91/400,619,112.80 = 159,923,640.91/x
  3. Step 3: Cross multiply
    290,303,832.91x = 400,619,112.80 × 159,923,640.91
  4. Step 4: Simplify right side
    290,303,832.91x = 64,068,467,137,109,984
  5. Step 5: Solve for x
    x = 64,068,467,137,109,984/290,303,832.91
  6. Step 6: Final answer
    x = 220,694,527.16

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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.