Home / 280,793,808.08-387,479,286.60-155,338,611.92

Finding the Fourth Proportional to 280,793,808.08, 387,479,286.60 and 155,338,611.92

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Solution

The fourth proportional to 280,793,808.08, 387,479,286.60 and 155,338,611.92 is: 214,358,339.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,793,808.08 : 387,479,286.60 = 155,338,611.92 : x
  2. Step 2: Convert to fraction form
    280,793,808.08/387,479,286.60 = 155,338,611.92/x
  3. Step 3: Cross multiply
    280,793,808.08x = 387,479,286.60 × 155,338,611.92
  4. Step 4: Simplify right side
    280,793,808.08x = 60,190,494,528,195,856
  5. Step 5: Solve for x
    x = 60,190,494,528,195,856/280,793,808.08
  6. Step 6: Final answer
    x = 214,358,339.81

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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.