Home / 1,397,523,634.40-2,096,285,451.60-428,049,279.20

Finding the Fourth Proportional to 1,397,523,634.40, 2,096,285,451.60 and 428,049,279.20

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Solution

The fourth proportional to 1,397,523,634.40, 2,096,285,451.60 and 428,049,279.20 is: 642,073,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,523,634.40 : 2,096,285,451.60 = 428,049,279.20 : x
  2. Step 2: Convert to fraction form
    1,397,523,634.40/2,096,285,451.60 = 428,049,279.20/x
  3. Step 3: Cross multiply
    1,397,523,634.40x = 2,096,285,451.60 × 428,049,279.20
  4. Step 4: Simplify right side
    1,397,523,634.40x = 897,313,476,554,826,368
  5. Step 5: Solve for x
    x = 897,313,476,554,826,368/1,397,523,634.40
  6. Step 6: Final answer
    x = 642,073,918.80

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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.