Home / 155,585,621.58-214,708,086.87-85,970,393.52

Finding the Fourth Proportional to 155,585,621.58, 214,708,086.87 and 85,970,393.52

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Solution

The fourth proportional to 155,585,621.58, 214,708,086.87 and 85,970,393.52 is: 118,639,103.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,585,621.58 : 214,708,086.87 = 85,970,393.52 : x
  2. Step 2: Convert to fraction form
    155,585,621.58/214,708,086.87 = 85,970,393.52/x
  3. Step 3: Cross multiply
    155,585,621.58x = 214,708,086.87 × 85,970,393.52
  4. Step 4: Simplify right side
    155,585,621.58x = 18,458,538,720,140,244
  5. Step 5: Solve for x
    x = 18,458,538,720,140,244/155,585,621.58
  6. Step 6: Final answer
    x = 118,639,103.88

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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.