Home / 288,980,629.38-398,793,525.76-156,821,626.26

Finding the Fourth Proportional to 288,980,629.38, 398,793,525.76 and 156,821,626.26

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Solution

The fourth proportional to 288,980,629.38, 398,793,525.76 and 156,821,626.26 is: 216,413,983.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,980,629.38 : 398,793,525.76 = 156,821,626.26 : x
  2. Step 2: Convert to fraction form
    288,980,629.38/398,793,525.76 = 156,821,626.26/x
  3. Step 3: Cross multiply
    288,980,629.38x = 398,793,525.76 × 156,821,626.26
  4. Step 4: Simplify right side
    288,980,629.38x = 62,539,449,251,642,400
  5. Step 5: Solve for x
    x = 62,539,449,251,642,400/288,980,629.38
  6. Step 6: Final answer
    x = 216,413,983.82

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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.