Home / 158,525,209,095.67-218,764,824,261.38-87,239,839,119.68

Finding the Fourth Proportional to 158,525,209,095.67, 218,764,824,261.38 and 87,239,839,119.68

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Solution

The fourth proportional to 158,525,209,095.67, 218,764,824,261.38 and 87,239,839,119.68 is: 120,390,997,636.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,525,209,095.67 : 218,764,824,261.38 = 87,239,839,119.68 : x
  2. Step 2: Convert to fraction form
    158,525,209,095.67/218,764,824,261.38 = 87,239,839,119.68/x
  3. Step 3: Cross multiply
    158,525,209,095.67x = 218,764,824,261.38 × 87,239,839,119.68
  4. Step 4: Simplify right side
    158,525,209,095.67x = 19,085,008,073,606,767,312,896
  5. Step 5: Solve for x
    x = 19,085,008,073,606,767,312,896/158,525,209,095.67
  6. Step 6: Final answer
    x = 120,390,997,636.78

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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.