Home / 442,673,385.80-664,010,078.70-135,965,006.60

Finding the Fourth Proportional to 442,673,385.80, 664,010,078.70 and 135,965,006.60

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Solution

The fourth proportional to 442,673,385.80, 664,010,078.70 and 135,965,006.60 is: 203,947,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,673,385.80 : 664,010,078.70 = 135,965,006.60 : x
  2. Step 2: Convert to fraction form
    442,673,385.80/664,010,078.70 = 135,965,006.60/x
  3. Step 3: Cross multiply
    442,673,385.80x = 664,010,078.70 × 135,965,006.60
  4. Step 4: Simplify right side
    442,673,385.80x = 90,282,134,732,912,016
  5. Step 5: Solve for x
    x = 90,282,134,732,912,016/442,673,385.80
  6. Step 6: Final answer
    x = 203,947,509.90

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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.