Home / 298,645,939.20-412,131,302.40-161,290,675.20

Finding the Fourth Proportional to 298,645,939.20, 412,131,302.40 and 161,290,675.20

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Solution

The fourth proportional to 298,645,939.20, 412,131,302.40 and 161,290,675.20 is: 222,581,081.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,645,939.20 : 412,131,302.40 = 161,290,675.20 : x
  2. Step 2: Convert to fraction form
    298,645,939.20/412,131,302.40 = 161,290,675.20/x
  3. Step 3: Cross multiply
    298,645,939.20x = 412,131,302.40 × 161,290,675.20
  4. Step 4: Simplify right side
    298,645,939.20x = 66,472,936,035,151,368
  5. Step 5: Solve for x
    x = 66,472,936,035,151,368/298,645,939.20
  6. Step 6: Final answer
    x = 222,581,081.17

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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.