Home / 781,393,467.99-1,171,198,626.03-314,756,300.43

Finding the Fourth Proportional to 781,393,467.99, 1,171,198,626.03 and 314,756,300.43

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Solution

The fourth proportional to 781,393,467.99, 1,171,198,626.03 and 314,756,300.43 is: 471,775,311.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,393,467.99 : 1,171,198,626.03 = 314,756,300.43 : x
  2. Step 2: Convert to fraction form
    781,393,467.99/1,171,198,626.03 = 314,756,300.43/x
  3. Step 3: Cross multiply
    781,393,467.99x = 1,171,198,626.03 × 314,756,300.43
  4. Step 4: Simplify right side
    781,393,467.99x = 368,642,146,597,901,888
  5. Step 5: Solve for x
    x = 368,642,146,597,901,888/781,393,467.99
  6. Step 6: Final answer
    x = 471,775,311.29

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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.