Home / 525,120,198.40-787,680,297.60-253,022,406.40

Finding the Fourth Proportional to 525,120,198.40, 787,680,297.60 and 253,022,406.40

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Solution

The fourth proportional to 525,120,198.40, 787,680,297.60 and 253,022,406.40 is: 379,533,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,120,198.40 : 787,680,297.60 = 253,022,406.40 : x
  2. Step 2: Convert to fraction form
    525,120,198.40/787,680,297.60 = 253,022,406.40/x
  3. Step 3: Cross multiply
    525,120,198.40x = 787,680,297.60 × 253,022,406.40
  4. Step 4: Simplify right side
    525,120,198.40x = 199,300,764,372,620,160
  5. Step 5: Solve for x
    x = 199,300,764,372,620,160/525,120,198.40
  6. Step 6: Final answer
    x = 379,533,609.60

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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.