Home / 7,200,184.32-9,936,599.04-3,981,127.68

Finding the Fourth Proportional to 7,200,184.32, 9,936,599.04 and 3,981,127.68

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Solution

The fourth proportional to 7,200,184.32, 9,936,599.04 and 3,981,127.68 is: 5,494,146.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200,184.32 : 9,936,599.04 = 3,981,127.68 : x
  2. Step 2: Convert to fraction form
    7,200,184.32/9,936,599.04 = 3,981,127.68/x
  3. Step 3: Cross multiply
    7,200,184.32x = 9,936,599.04 × 3,981,127.68
  4. Step 4: Simplify right side
    7,200,184.32x = 39,558,869,483,205.42
  5. Step 5: Solve for x
    x = 39,558,869,483,205.42/7,200,184.32
  6. Step 6: Final answer
    x = 5,494,146.78

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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.