Home / 729,422,143.20-1,094,133,214.80-218,818,879.20

Finding the Fourth Proportional to 729,422,143.20, 1,094,133,214.80 and 218,818,879.20

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Solution

The fourth proportional to 729,422,143.20, 1,094,133,214.80 and 218,818,879.20 is: 328,228,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,422,143.20 : 1,094,133,214.80 = 218,818,879.20 : x
  2. Step 2: Convert to fraction form
    729,422,143.20/1,094,133,214.80 = 218,818,879.20/x
  3. Step 3: Cross multiply
    729,422,143.20x = 1,094,133,214.80 × 218,818,879.20
  4. Step 4: Simplify right side
    729,422,143.20x = 239,417,003,758,028,832
  5. Step 5: Solve for x
    x = 239,417,003,758,028,832/729,422,143.20
  6. Step 6: Final answer
    x = 328,228,318.80

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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.