Home / 381,357,942.51-572,042,228.37-108,728,709.51

Finding the Fourth Proportional to 381,357,942.51, 572,042,228.37 and 108,728,709.51

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Solution

The fourth proportional to 381,357,942.51, 572,042,228.37 and 108,728,709.51 is: 163,094,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,357,942.51 : 572,042,228.37 = 108,728,709.51 : x
  2. Step 2: Convert to fraction form
    381,357,942.51/572,042,228.37 = 108,728,709.51/x
  3. Step 3: Cross multiply
    381,357,942.51x = 572,042,228.37 × 108,728,709.51
  4. Step 4: Simplify right side
    381,357,942.51x = 62,197,413,275,894,816
  5. Step 5: Solve for x
    x = 62,197,413,275,894,816/381,357,942.51
  6. Step 6: Final answer
    x = 163,094,579.51

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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.