Home / 398,835,568.80-550,484,917.20-233,876,282.40

Finding the Fourth Proportional to 398,835,568.80, 550,484,917.20 and 233,876,282.40

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Solution

The fourth proportional to 398,835,568.80, 550,484,917.20 and 233,876,282.40 is: 322,803,119.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,835,568.80 : 550,484,917.20 = 233,876,282.40 : x
  2. Step 2: Convert to fraction form
    398,835,568.80/550,484,917.20 = 233,876,282.40/x
  3. Step 3: Cross multiply
    398,835,568.80x = 550,484,917.20 × 233,876,282.40
  4. Step 4: Simplify right side
    398,835,568.80x = 128,745,365,952,007,824
  5. Step 5: Solve for x
    x = 128,745,365,952,007,824/398,835,568.80
  6. Step 6: Final answer
    x = 322,803,119.94

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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.