Home / 216,015,305.09-298,069,053.24-131,198,286.79

Finding the Fourth Proportional to 216,015,305.09, 298,069,053.24 and 131,198,286.79

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Solution

The fourth proportional to 216,015,305.09, 298,069,053.24 and 131,198,286.79 is: 181,034,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,015,305.09 : 298,069,053.24 = 131,198,286.79 : x
  2. Step 2: Convert to fraction form
    216,015,305.09/298,069,053.24 = 131,198,286.79/x
  3. Step 3: Cross multiply
    216,015,305.09x = 298,069,053.24 × 131,198,286.79
  4. Step 4: Simplify right side
    216,015,305.09x = 39,106,149,129,460,128
  5. Step 5: Solve for x
    x = 39,106,149,129,460,128/216,015,305.09
  6. Step 6: Final answer
    x = 181,034,159.20

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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.