Home / 298,820,678.65-412,373,086.80-166,670,193.04

Finding the Fourth Proportional to 298,820,678.65, 412,373,086.80 and 166,670,193.04

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Solution

The fourth proportional to 298,820,678.65, 412,373,086.80 and 166,670,193.04 is: 230,005,173.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,820,678.65 : 412,373,086.80 = 166,670,193.04 : x
  2. Step 2: Convert to fraction form
    298,820,678.65/412,373,086.80 = 166,670,193.04/x
  3. Step 3: Cross multiply
    298,820,678.65x = 412,373,086.80 × 166,670,193.04
  4. Step 4: Simplify right side
    298,820,678.65x = 68,730,301,981,456,672
  5. Step 5: Solve for x
    x = 68,730,301,981,456,672/298,820,678.65
  6. Step 6: Final answer
    x = 230,005,173.31

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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.