Home / 308,825,163.48-426,274,264.26-198,816,789

Finding the Fourth Proportional to 308,825,163.48, 426,274,264.26 and 198,816,789

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Solution

The fourth proportional to 308,825,163.48, 426,274,264.26 and 198,816,789 is: 274,428,675.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,825,163.48 : 426,274,264.26 = 198,816,789 : x
  2. Step 2: Convert to fraction form
    308,825,163.48/426,274,264.26 = 198,816,789/x
  3. Step 3: Cross multiply
    308,825,163.48x = 426,274,264.26 × 198,816,789
  4. Step 4: Simplify right side
    308,825,163.48x = 84,750,480,453,510,656
  5. Step 5: Solve for x
    x = 84,750,480,453,510,656/308,825,163.48
  6. Step 6: Final answer
    x = 274,428,675.11

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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.