Home / 439,488,019.20-659,337,004.80-132,783,139.20

Finding the Fourth Proportional to 439,488,019.20, 659,337,004.80 and 132,783,139.20

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Solution

The fourth proportional to 439,488,019.20, 659,337,004.80 and 132,783,139.20 is: 199,206,425.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,488,019.20 : 659,337,004.80 = 132,783,139.20 : x
  2. Step 2: Convert to fraction form
    439,488,019.20/659,337,004.80 = 132,783,139.20/x
  3. Step 3: Cross multiply
    439,488,019.20x = 659,337,004.80 × 132,783,139.20
  4. Step 4: Simplify right side
    439,488,019.20x = 87,548,837,288,069,456
  5. Step 5: Solve for x
    x = 87,548,837,288,069,456/439,488,019.20
  6. Step 6: Final answer
    x = 199,206,425.35

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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.