Home / 439,488,021.20-659,337,007.80-132,783,141.20

Finding the Fourth Proportional to 439,488,021.20, 659,337,007.80 and 132,783,141.20

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Solution

The fourth proportional to 439,488,021.20, 659,337,007.80 and 132,783,141.20 is: 199,206,428.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,488,021.20 : 659,337,007.80 = 132,783,141.20 : x
  2. Step 2: Convert to fraction form
    439,488,021.20/659,337,007.80 = 132,783,141.20/x
  3. Step 3: Cross multiply
    439,488,021.20x = 659,337,007.80 × 132,783,141.20
  4. Step 4: Simplify right side
    439,488,021.20x = 87,548,839,005,092,896
  5. Step 5: Solve for x
    x = 87,548,839,005,092,896/439,488,021.20
  6. Step 6: Final answer
    x = 199,206,428.35

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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.