Home / 288,393,619.20-397,981,559.16-156,237,200.52

Finding the Fourth Proportional to 288,393,619.20, 397,981,559.16 and 156,237,200.52

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Solution

The fourth proportional to 288,393,619.20, 397,981,559.16 and 156,237,200.52 is: 215,606,450.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,393,619.20 : 397,981,559.16 = 156,237,200.52 : x
  2. Step 2: Convert to fraction form
    288,393,619.20/397,981,559.16 = 156,237,200.52/x
  3. Step 3: Cross multiply
    288,393,619.20x = 397,981,559.16 × 156,237,200.52
  4. Step 4: Simplify right side
    288,393,619.20x = 62,179,524,661,743,168
  5. Step 5: Solve for x
    x = 62,179,524,661,743,168/288,393,619.20
  6. Step 6: Final answer
    x = 215,606,450.77

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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.