Home / 398,836,218.38-550,485,815.27-233,876,931.98

Finding the Fourth Proportional to 398,836,218.38, 550,485,815.27 and 233,876,931.98

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Solution

The fourth proportional to 398,836,218.38, 550,485,815.27 and 233,876,931.98 is: 322,804,017.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,836,218.38 : 550,485,815.27 = 233,876,931.98 : x
  2. Step 2: Convert to fraction form
    398,836,218.38/550,485,815.27 = 233,876,931.98/x
  3. Step 3: Cross multiply
    398,836,218.38x = 550,485,815.27 × 233,876,931.98
  4. Step 4: Simplify right side
    398,836,218.38x = 128,745,933,569,934,816
  5. Step 5: Solve for x
    x = 128,745,933,569,934,816/398,836,218.38
  6. Step 6: Final answer
    x = 322,804,017.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.