Home / 90,635,860.45-135,954,733.52-72,554,991.31

Finding the Fourth Proportional to 90,635,860.45, 135,954,733.52 and 72,554,991.31

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Solution

The fourth proportional to 90,635,860.45, 135,954,733.52 and 72,554,991.31 is: 108,833,241.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,635,860.45 : 135,954,733.52 = 72,554,991.31 : x
  2. Step 2: Convert to fraction form
    90,635,860.45/135,954,733.52 = 72,554,991.31/x
  3. Step 3: Cross multiply
    90,635,860.45x = 135,954,733.52 × 72,554,991.31
  4. Step 4: Simplify right side
    90,635,860.45x = 9,864,194,509,096,966
  5. Step 5: Solve for x
    x = 9,864,194,509,096,966/90,635,860.45
  6. Step 6: Final answer
    x = 108,833,241.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.