Home / 439,540,336.20-659,310,504.30-132,879,779.40

Finding the Fourth Proportional to 439,540,336.20, 659,310,504.30 and 132,879,779.40

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Solution

The fourth proportional to 439,540,336.20, 659,310,504.30 and 132,879,779.40 is: 199,319,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,540,336.20 : 659,310,504.30 = 132,879,779.40 : x
  2. Step 2: Convert to fraction form
    439,540,336.20/659,310,504.30 = 132,879,779.40/x
  3. Step 3: Cross multiply
    439,540,336.20x = 659,310,504.30 × 132,879,779.40
  4. Step 4: Simplify right side
    439,540,336.20x = 87,609,034,367,486,752
  5. Step 5: Solve for x
    x = 87,609,034,367,486,752/439,540,336.20
  6. Step 6: Final answer
    x = 199,319,669.10

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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.