Home / 200,078,494.20-300,043,091.70-78,884,868.60

Finding the Fourth Proportional to 200,078,494.20, 300,043,091.70 and 78,884,868.60

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Solution

The fourth proportional to 200,078,494.20, 300,043,091.70 and 78,884,868.60 is: 118,297,870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,078,494.20 : 300,043,091.70 = 78,884,868.60 : x
  2. Step 2: Convert to fraction form
    200,078,494.20/300,043,091.70 = 78,884,868.60/x
  3. Step 3: Cross multiply
    200,078,494.20x = 300,043,091.70 × 78,884,868.60
  4. Step 4: Simplify right side
    200,078,494.20x = 23,668,859,863,092,248
  5. Step 5: Solve for x
    x = 23,668,859,863,092,248/200,078,494.20
  6. Step 6: Final answer
    x = 118,297,870.83

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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.