Home / 268,649,999.80-402,303,153.30-214,902,287.80

Finding the Fourth Proportional to 268,649,999.80, 402,303,153.30 and 214,902,287.80

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Solution

The fourth proportional to 268,649,999.80, 402,303,153.30 and 214,902,287.80 is: 321,815,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,649,999.80 : 402,303,153.30 = 214,902,287.80 : x
  2. Step 2: Convert to fraction form
    268,649,999.80/402,303,153.30 = 214,902,287.80/x
  3. Step 3: Cross multiply
    268,649,999.80x = 402,303,153.30 × 214,902,287.80
  4. Step 4: Simplify right side
    268,649,999.80x = 86,455,868,033,324,128
  5. Step 5: Solve for x
    x = 86,455,868,033,324,128/268,649,999.80
  6. Step 6: Final answer
    x = 321,815,998.87

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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.