Home / 1,397,550,974.52-2,096,250,879.06-428,205,389.88

Finding the Fourth Proportional to 1,397,550,974.52, 2,096,250,879.06 and 428,205,389.88

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Solution

The fourth proportional to 1,397,550,974.52, 2,096,250,879.06 and 428,205,389.88 is: 642,284,926.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,550,974.52 : 2,096,250,879.06 = 428,205,389.88 : x
  2. Step 2: Convert to fraction form
    1,397,550,974.52/2,096,250,879.06 = 428,205,389.88/x
  3. Step 3: Cross multiply
    1,397,550,974.52x = 2,096,250,879.06 × 428,205,389.88
  4. Step 4: Simplify right side
    1,397,550,974.52x = 897,625,924,954,179,968
  5. Step 5: Solve for x
    x = 897,625,924,954,179,968/1,397,550,974.52
  6. Step 6: Final answer
    x = 642,284,926.50

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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.