Home / 199,223,999.20-298,835,998.80-122,297,586.40

Finding the Fourth Proportional to 199,223,999.20, 298,835,998.80 and 122,297,586.40

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Solution

The fourth proportional to 199,223,999.20, 298,835,998.80 and 122,297,586.40 is: 183,446,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,223,999.20 : 298,835,998.80 = 122,297,586.40 : x
  2. Step 2: Convert to fraction form
    199,223,999.20/298,835,998.80 = 122,297,586.40/x
  3. Step 3: Cross multiply
    199,223,999.20x = 298,835,998.80 × 122,297,586.40
  4. Step 4: Simplify right side
    199,223,999.20x = 36,546,921,382,673,296
  5. Step 5: Solve for x
    x = 36,546,921,382,673,296/199,223,999.20
  6. Step 6: Final answer
    x = 183,446,379.60

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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.