Home / 298,644,423.20-412,129,218-161,289,159.20

Finding the Fourth Proportional to 298,644,423.20, 412,129,218 and 161,289,159.20

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Solution

The fourth proportional to 298,644,423.20, 412,129,218 and 161,289,159.20 is: 222,578,993.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,644,423.20 : 412,129,218 = 161,289,159.20 : x
  2. Step 2: Convert to fraction form
    298,644,423.20/412,129,218 = 161,289,159.20/x
  3. Step 3: Cross multiply
    298,644,423.20x = 412,129,218 × 161,289,159.20
  4. Step 4: Simplify right side
    298,644,423.20x = 66,471,975,052,973,504
  5. Step 5: Solve for x
    x = 66,471,975,052,973,504/298,644,423.20
  6. Step 6: Final answer
    x = 222,578,993.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.