Home / 172,465,704.30-258,698,556.45-86,217,422.70

Finding the Fourth Proportional to 172,465,704.30, 258,698,556.45 and 86,217,422.70

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Solution

The fourth proportional to 172,465,704.30, 258,698,556.45 and 86,217,422.70 is: 129,326,134.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,465,704.30 : 258,698,556.45 = 86,217,422.70 : x
  2. Step 2: Convert to fraction form
    172,465,704.30/258,698,556.45 = 86,217,422.70/x
  3. Step 3: Cross multiply
    172,465,704.30x = 258,698,556.45 × 86,217,422.70
  4. Step 4: Simplify right side
    172,465,704.30x = 22,304,322,793,329,460
  5. Step 5: Solve for x
    x = 22,304,322,793,329,460/172,465,704.30
  6. Step 6: Final answer
    x = 129,326,134.05

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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.