Home / 891,394,611.23-1,230,162,982.77-494,917,620.36

Finding the Fourth Proportional to 891,394,611.23, 1,230,162,982.77 and 494,917,620.36

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Solution

The fourth proportional to 891,394,611.23, 1,230,162,982.77 and 494,917,620.36 is: 683,007,647.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,394,611.23 : 1,230,162,982.77 = 494,917,620.36 : x
  2. Step 2: Convert to fraction form
    891,394,611.23/1,230,162,982.77 = 494,917,620.36/x
  3. Step 3: Cross multiply
    891,394,611.23x = 1,230,162,982.77 × 494,917,620.36
  4. Step 4: Simplify right side
    891,394,611.23x = 608,829,336,087,488,128
  5. Step 5: Solve for x
    x = 608,829,336,087,488,128/891,394,611.23
  6. Step 6: Final answer
    x = 683,007,647.14

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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.