Home / 809,367,129.87-1,212,211,960.65-633,393,479.67

Finding the Fourth Proportional to 809,367,129.87, 1,212,211,960.65 and 633,393,479.67

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Solution

The fourth proportional to 809,367,129.87, 1,212,211,960.65 and 633,393,479.67 is: 948,651,265.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,367,129.87 : 1,212,211,960.65 = 633,393,479.67 : x
  2. Step 2: Convert to fraction form
    809,367,129.87/1,212,211,960.65 = 633,393,479.67/x
  3. Step 3: Cross multiply
    809,367,129.87x = 1,212,211,960.65 × 633,393,479.67
  4. Step 4: Simplify right side
    809,367,129.87x = 767,807,151,853,696,640
  5. Step 5: Solve for x
    x = 767,807,151,853,696,640/809,367,129.87
  6. Step 6: Final answer
    x = 948,651,265.31

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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.