Home / 492,021,200.80-738,040,549.20-146,979,085.60

Finding the Fourth Proportional to 492,021,200.80, 738,040,549.20 and 146,979,085.60

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Solution

The fourth proportional to 492,021,200.80, 738,040,549.20 and 146,979,085.60 is: 220,471,241.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,021,200.80 : 738,040,549.20 = 146,979,085.60 : x
  2. Step 2: Convert to fraction form
    492,021,200.80/738,040,549.20 = 146,979,085.60/x
  3. Step 3: Cross multiply
    492,021,200.80x = 738,040,549.20 × 146,979,085.60
  4. Step 4: Simplify right side
    492,021,200.80x = 108,476,525,057,137,808
  5. Step 5: Solve for x
    x = 108,476,525,057,137,808/492,021,200.80
  6. Step 6: Final answer
    x = 220,471,241.65

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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.