Home / 79,964,853.76-119,947,280.88-19,380,579.52

Finding the Fourth Proportional to 79,964,853.76, 119,947,280.88 and 19,380,579.52

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Solution

The fourth proportional to 79,964,853.76, 119,947,280.88 and 19,380,579.52 is: 29,070,869.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,964,853.76 : 119,947,280.88 = 19,380,579.52 : x
  2. Step 2: Convert to fraction form
    79,964,853.76/119,947,280.88 = 19,380,579.52/x
  3. Step 3: Cross multiply
    79,964,853.76x = 119,947,280.88 × 19,380,579.52
  4. Step 4: Simplify right side
    79,964,853.76x = 2,324,647,815,302,615.50
  5. Step 5: Solve for x
    x = 2,324,647,815,302,615.50/79,964,853.76
  6. Step 6: Final answer
    x = 29,070,869.34

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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.