Home / 442,673,391.80-664,010,087.70-135,965,012.60

Finding the Fourth Proportional to 442,673,391.80, 664,010,087.70 and 135,965,012.60

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Solution

The fourth proportional to 442,673,391.80, 664,010,087.70 and 135,965,012.60 is: 203,947,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,673,391.80 : 664,010,087.70 = 135,965,012.60 : x
  2. Step 2: Convert to fraction form
    442,673,391.80/664,010,087.70 = 135,965,012.60/x
  3. Step 3: Cross multiply
    442,673,391.80x = 664,010,087.70 × 135,965,012.60
  4. Step 4: Simplify right side
    442,673,391.80x = 90,282,139,940,657,600
  5. Step 5: Solve for x
    x = 90,282,139,940,657,600/442,673,391.80
  6. Step 6: Final answer
    x = 203,947,518.90

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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.