Home / 158,525,209,113.80-218,764,824,286.38-87,239,839,137.80

Finding the Fourth Proportional to 158,525,209,113.80, 218,764,824,286.38 and 87,239,839,137.80

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Solution

The fourth proportional to 158,525,209,113.80, 218,764,824,286.38 and 87,239,839,137.80 is: 120,390,997,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,525,209,113.80 : 218,764,824,286.38 = 87,239,839,137.80 : x
  2. Step 2: Convert to fraction form
    158,525,209,113.80/218,764,824,286.38 = 87,239,839,137.80/x
  3. Step 3: Cross multiply
    158,525,209,113.80x = 218,764,824,286.38 × 87,239,839,137.80
  4. Step 4: Simplify right side
    158,525,209,113.80x = 19,085,008,079,752,873,902,080
  5. Step 5: Solve for x
    x = 19,085,008,079,752,873,902,080/158,525,209,113.80
  6. Step 6: Final answer
    x = 120,390,997,661.78

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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.