Home / 805,879,489.20-1,208,819,233.80-260,676,135.60

Finding the Fourth Proportional to 805,879,489.20, 1,208,819,233.80 and 260,676,135.60

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Solution

The fourth proportional to 805,879,489.20, 1,208,819,233.80 and 260,676,135.60 is: 391,014,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,879,489.20 : 1,208,819,233.80 = 260,676,135.60 : x
  2. Step 2: Convert to fraction form
    805,879,489.20/1,208,819,233.80 = 260,676,135.60/x
  3. Step 3: Cross multiply
    805,879,489.20x = 1,208,819,233.80 × 260,676,135.60
  4. Step 4: Simplify right side
    805,879,489.20x = 315,110,326,505,936,896
  5. Step 5: Solve for x
    x = 315,110,326,505,936,896/805,879,489.20
  6. Step 6: Final answer
    x = 391,014,203.40

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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.