Home / 216,505,785.40-298,488,939.24-171,999,431.44

Finding the Fourth Proportional to 216,505,785.40, 298,488,939.24 and 171,999,431.44

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Solution

The fourth proportional to 216,505,785.40, 298,488,939.24 and 171,999,431.44 is: 237,129,588.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,505,785.40 : 298,488,939.24 = 171,999,431.44 : x
  2. Step 2: Convert to fraction form
    216,505,785.40/298,488,939.24 = 171,999,431.44/x
  3. Step 3: Cross multiply
    216,505,785.40x = 298,488,939.24 × 171,999,431.44
  4. Step 4: Simplify right side
    216,505,785.40x = 51,339,927,840,408,704
  5. Step 5: Solve for x
    x = 51,339,927,840,408,704/216,505,785.40
  6. Step 6: Final answer
    x = 237,129,588.69

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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.