Home / 189,935,394.72-283,306,185.75-172,498,815.51

Finding the Fourth Proportional to 189,935,394.72, 283,306,185.75 and 172,498,815.51

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Solution

The fourth proportional to 189,935,394.72, 283,306,185.75 and 172,498,815.51 is: 257,297,917.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,935,394.72 : 283,306,185.75 = 172,498,815.51 : x
  2. Step 2: Convert to fraction form
    189,935,394.72/283,306,185.75 = 172,498,815.51/x
  3. Step 3: Cross multiply
    189,935,394.72x = 283,306,185.75 × 172,498,815.51
  4. Step 4: Simplify right side
    189,935,394.72x = 48,869,981,468,531,040
  5. Step 5: Solve for x
    x = 48,869,981,468,531,040/189,935,394.72
  6. Step 6: Final answer
    x = 257,297,917.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.