Home / 308,825,161.48-426,274,261.50-198,816,787

Finding the Fourth Proportional to 308,825,161.48, 426,274,261.50 and 198,816,787

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Solution

The fourth proportional to 308,825,161.48, 426,274,261.50 and 198,816,787 is: 274,428,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,825,161.48 : 426,274,261.50 = 198,816,787 : x
  2. Step 2: Convert to fraction form
    308,825,161.48/426,274,261.50 = 198,816,787/x
  3. Step 3: Cross multiply
    308,825,161.48x = 426,274,261.50 × 198,816,787
  4. Step 4: Simplify right side
    308,825,161.48x = 84,750,479,052,227,808
  5. Step 5: Solve for x
    x = 84,750,479,052,227,808/308,825,161.48
  6. Step 6: Final answer
    x = 274,428,672.35

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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.