Home / 1,131,015,621.88-1,560,815,922.10-622,436,890.50

Finding the Fourth Proportional to 1,131,015,621.88, 1,560,815,922.10 and 622,436,890.50

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Solution

The fourth proportional to 1,131,015,621.88, 1,560,815,922.10 and 622,436,890.50 is: 858,970,813.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,015,621.88 : 1,560,815,922.10 = 622,436,890.50 : x
  2. Step 2: Convert to fraction form
    1,131,015,621.88/1,560,815,922.10 = 622,436,890.50/x
  3. Step 3: Cross multiply
    1,131,015,621.88x = 1,560,815,922.10 × 622,436,890.50
  4. Step 4: Simplify right side
    1,131,015,621.88x = 971,509,409,194,814,208
  5. Step 5: Solve for x
    x = 971,509,409,194,814,208/1,131,015,621.88
  6. Step 6: Final answer
    x = 858,970,813.84

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.