Home / 90,764,474.74-136,147,891.47-30,180,198.58

Finding the Fourth Proportional to 90,764,474.74, 136,147,891.47 and 30,180,198.58

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Solution

The fourth proportional to 90,764,474.74, 136,147,891.47 and 30,180,198.58 is: 45,270,690.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,764,474.74 : 136,147,891.47 = 30,180,198.58 : x
  2. Step 2: Convert to fraction form
    90,764,474.74/136,147,891.47 = 30,180,198.58/x
  3. Step 3: Cross multiply
    90,764,474.74x = 136,147,891.47 × 30,180,198.58
  4. Step 4: Simplify right side
    90,764,474.74x = 4,108,970,400,812,888
  5. Step 5: Solve for x
    x = 4,108,970,400,812,888/90,764,474.74
  6. Step 6: Final answer
    x = 45,270,690.02

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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.