Home / 281,740,918.80-422,821,330.20-145,356,099.60

Finding the Fourth Proportional to 281,740,918.80, 422,821,330.20 and 145,356,099.60

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Solution

The fourth proportional to 281,740,918.80, 422,821,330.20 and 145,356,099.60 is: 218,142,468.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,740,918.80 : 422,821,330.20 = 145,356,099.60 : x
  2. Step 2: Convert to fraction form
    281,740,918.80/422,821,330.20 = 145,356,099.60/x
  3. Step 3: Cross multiply
    281,740,918.80x = 422,821,330.20 × 145,356,099.60
  4. Step 4: Simplify right side
    281,740,918.80x = 61,459,659,385,555,680
  5. Step 5: Solve for x
    x = 61,459,659,385,555,680/281,740,918.80
  6. Step 6: Final answer
    x = 218,142,468.08

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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.