Home / 172,440,356.40-258,760,067.40-64,745,866.80

Finding the Fourth Proportional to 172,440,356.40, 258,760,067.40 and 64,745,866.80

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Solution

The fourth proportional to 172,440,356.40, 258,760,067.40 and 64,745,866.80 is: 97,156,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,440,356.40 : 258,760,067.40 = 64,745,866.80 : x
  2. Step 2: Convert to fraction form
    172,440,356.40/258,760,067.40 = 64,745,866.80/x
  3. Step 3: Cross multiply
    172,440,356.40x = 258,760,067.40 × 64,745,866.80
  4. Step 4: Simplify right side
    172,440,356.40x = 16,753,644,857,039,422
  5. Step 5: Solve for x
    x = 16,753,644,857,039,422/172,440,356.40
  6. Step 6: Final answer
    x = 97,156,171.60

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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.