Home / 1,991,761,922.40-2,985,627,344.40-1,173,453,007.20

Finding the Fourth Proportional to 1,991,761,922.40, 2,985,627,344.40 and 1,173,453,007.20

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Solution

The fourth proportional to 1,991,761,922.40, 2,985,627,344.40 and 1,173,453,007.20 is: 1,758,992,049.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,761,922.40 : 2,985,627,344.40 = 1,173,453,007.20 : x
  2. Step 2: Convert to fraction form
    1,991,761,922.40/2,985,627,344.40 = 1,173,453,007.20/x
  3. Step 3: Cross multiply
    1,991,761,922.40x = 2,985,627,344.40 × 1,173,453,007.20
  4. Step 4: Simplify right side
    1,991,761,922.40x = 3,503,493,385,664,730,112
  5. Step 5: Solve for x
    x = 3,503,493,385,664,730,112/1,991,761,922.40
  6. Step 6: Final answer
    x = 1,758,992,049.33

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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.