Home / 330,190,720.40-495,286,080.60-253,898,829.20

Finding the Fourth Proportional to 330,190,720.40, 495,286,080.60 and 253,898,829.20

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Solution

The fourth proportional to 330,190,720.40, 495,286,080.60 and 253,898,829.20 is: 380,848,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,190,720.40 : 495,286,080.60 = 253,898,829.20 : x
  2. Step 2: Convert to fraction form
    330,190,720.40/495,286,080.60 = 253,898,829.20/x
  3. Step 3: Cross multiply
    330,190,720.40x = 495,286,080.60 × 253,898,829.20
  4. Step 4: Simplify right side
    330,190,720.40x = 125,752,555,983,396,832
  5. Step 5: Solve for x
    x = 125,752,555,983,396,832/330,190,720.40
  6. Step 6: Final answer
    x = 380,848,243.80

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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.