Home / 1,393,100,406.40-1,922,420,538.55-758,023,392.23

Finding the Fourth Proportional to 1,393,100,406.40, 1,922,420,538.55 and 758,023,392.23

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Solution

The fourth proportional to 1,393,100,406.40, 1,922,420,538.55 and 758,023,392.23 is: 1,046,040,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,100,406.40 : 1,922,420,538.55 = 758,023,392.23 : x
  2. Step 2: Convert to fraction form
    1,393,100,406.40/1,922,420,538.55 = 758,023,392.23/x
  3. Step 3: Cross multiply
    1,393,100,406.40x = 1,922,420,538.55 × 758,023,392.23
  4. Step 4: Simplify right side
    1,393,100,406.40x = 1,457,239,737,929,265,152
  5. Step 5: Solve for x
    x = 1,457,239,737,929,265,152/1,393,100,406.40
  6. Step 6: Final answer
    x = 1,046,040,709.80

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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.