Home / 168,036,684,215.64-231,891,322,871.34-90,874,523,967.96

Finding the Fourth Proportional to 168,036,684,215.64, 231,891,322,871.34 and 90,874,523,967.96

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Solution

The fourth proportional to 168,036,684,215.64, 231,891,322,871.34 and 90,874,523,967.96 is: 125,407,220,908.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,036,684,215.64 : 231,891,322,871.34 = 90,874,523,967.96 : x
  2. Step 2: Convert to fraction form
    168,036,684,215.64/231,891,322,871.34 = 90,874,523,967.96/x
  3. Step 3: Cross multiply
    168,036,684,215.64x = 231,891,322,871.34 × 90,874,523,967.96
  4. Step 4: Simplify right side
    168,036,684,215.64x = 21,073,013,578,233,540,509,696
  5. Step 5: Solve for x
    x = 21,073,013,578,233,540,509,696/168,036,684,215.64
  6. Step 6: Final answer
    x = 125,407,220,908.92

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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.