Home / 1,129,261,331.20-1,693,891,996.80-896,809,037.80

Finding the Fourth Proportional to 1,129,261,331.20, 1,693,891,996.80 and 896,809,037.80

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Solution

The fourth proportional to 1,129,261,331.20, 1,693,891,996.80 and 896,809,037.80 is: 1,345,213,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,261,331.20 : 1,693,891,996.80 = 896,809,037.80 : x
  2. Step 2: Convert to fraction form
    1,129,261,331.20/1,693,891,996.80 = 896,809,037.80/x
  3. Step 3: Cross multiply
    1,129,261,331.20x = 1,693,891,996.80 × 896,809,037.80
  4. Step 4: Simplify right side
    1,129,261,331.20x = 1,519,097,651,787,328,512
  5. Step 5: Solve for x
    x = 1,519,097,651,787,328,512/1,129,261,331.20
  6. Step 6: Final answer
    x = 1,345,213,556.70

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Double scale
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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.