Home / 479,120,003.20-718,680,004.80-192,111,644.80

Finding the Fourth Proportional to 479,120,003.20, 718,680,004.80 and 192,111,644.80

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Solution

The fourth proportional to 479,120,003.20, 718,680,004.80 and 192,111,644.80 is: 288,167,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,120,003.20 : 718,680,004.80 = 192,111,644.80 : x
  2. Step 2: Convert to fraction form
    479,120,003.20/718,680,004.80 = 192,111,644.80/x
  3. Step 3: Cross multiply
    479,120,003.20x = 718,680,004.80 × 192,111,644.80
  4. Step 4: Simplify right side
    479,120,003.20x = 138,066,797,806,999,888
  5. Step 5: Solve for x
    x = 138,066,797,806,999,888/479,120,003.20
  6. Step 6: Final answer
    x = 288,167,467.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.