Home / 388,121,400,991.73-535,515,706,473-225,444,399,382.38

Finding the Fourth Proportional to 388,121,400,991.73, 535,515,706,473 and 225,444,399,382.38

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Solution

The fourth proportional to 388,121,400,991.73, 535,515,706,473 and 225,444,399,382.38 is: 311,059,932,529.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,121,400,991.73 : 535,515,706,473 = 225,444,399,382.38 : x
  2. Step 2: Convert to fraction form
    388,121,400,991.73/535,515,706,473 = 225,444,399,382.38/x
  3. Step 3: Cross multiply
    388,121,400,991.73x = 535,515,706,473 × 225,444,399,382.38
  4. Step 4: Simplify right side
    388,121,400,991.73x = 120,729,016,805,636,389,732,352
  5. Step 5: Solve for x
    x = 120,729,016,805,636,389,732,352/388,121,400,991.73
  6. Step 6: Final answer
    x = 311,059,932,529.23

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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.