Home / 381,357,945.51-572,042,232.87-108,728,712.51

Finding the Fourth Proportional to 381,357,945.51, 572,042,232.87 and 108,728,712.51

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Solution

The fourth proportional to 381,357,945.51, 572,042,232.87 and 108,728,712.51 is: 163,094,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,357,945.51 : 572,042,232.87 = 108,728,712.51 : x
  2. Step 2: Convert to fraction form
    381,357,945.51/572,042,232.87 = 108,728,712.51/x
  3. Step 3: Cross multiply
    381,357,945.51x = 572,042,232.87 × 108,728,712.51
  4. Step 4: Simplify right side
    381,357,945.51x = 62,197,415,481,300,704
  5. Step 5: Solve for x
    x = 62,197,415,481,300,704/381,357,945.51
  6. Step 6: Final answer
    x = 163,094,584.01

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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.