Home / 1,328,604,850.20-1,992,907,275.30-408,361,614.60

Finding the Fourth Proportional to 1,328,604,850.20, 1,992,907,275.30 and 408,361,614.60

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Solution

The fourth proportional to 1,328,604,850.20, 1,992,907,275.30 and 408,361,614.60 is: 612,542,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,604,850.20 : 1,992,907,275.30 = 408,361,614.60 : x
  2. Step 2: Convert to fraction form
    1,328,604,850.20/1,992,907,275.30 = 408,361,614.60/x
  3. Step 3: Cross multiply
    1,328,604,850.20x = 1,992,907,275.30 × 408,361,614.60
  4. Step 4: Simplify right side
    1,328,604,850.20x = 813,826,832,689,594,752
  5. Step 5: Solve for x
    x = 813,826,832,689,594,752/1,328,604,850.20
  6. Step 6: Final answer
    x = 612,542,421.90

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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.