Home / 218,086,405.36-326,550,140.52-131,707,953.52

Finding the Fourth Proportional to 218,086,405.36, 326,550,140.52 and 131,707,953.52

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Solution

The fourth proportional to 218,086,405.36, 326,550,140.52 and 131,707,953.52 is: 197,211,975.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,086,405.36 : 326,550,140.52 = 131,707,953.52 : x
  2. Step 2: Convert to fraction form
    218,086,405.36/326,550,140.52 = 131,707,953.52/x
  3. Step 3: Cross multiply
    218,086,405.36x = 326,550,140.52 × 131,707,953.52
  4. Step 4: Simplify right side
    218,086,405.36x = 43,009,250,729,557,624
  5. Step 5: Solve for x
    x = 43,009,250,729,557,624/218,086,405.36
  6. Step 6: Final answer
    x = 197,211,975.04

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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.