Home / 298,645,939.70-412,131,303.09-161,290,675.70

Finding the Fourth Proportional to 298,645,939.70, 412,131,303.09 and 161,290,675.70

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Solution

The fourth proportional to 298,645,939.70, 412,131,303.09 and 161,290,675.70 is: 222,581,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,645,939.70 : 412,131,303.09 = 161,290,675.70 : x
  2. Step 2: Convert to fraction form
    298,645,939.70/412,131,303.09 = 161,290,675.70/x
  3. Step 3: Cross multiply
    298,645,939.70x = 412,131,303.09 × 161,290,675.70
  4. Step 4: Simplify right side
    298,645,939.70x = 66,472,936,352,507,592
  5. Step 5: Solve for x
    x = 66,472,936,352,507,592/298,645,939.70
  6. Step 6: Final answer
    x = 222,581,081.86

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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.