Home / 1,278,179,809.20-1,917,269,713.80-733,984,225.20

Finding the Fourth Proportional to 1,278,179,809.20, 1,917,269,713.80 and 733,984,225.20

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Solution

The fourth proportional to 1,278,179,809.20, 1,917,269,713.80 and 733,984,225.20 is: 1,100,976,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,179,809.20 : 1,917,269,713.80 = 733,984,225.20 : x
  2. Step 2: Convert to fraction form
    1,278,179,809.20/1,917,269,713.80 = 733,984,225.20/x
  3. Step 3: Cross multiply
    1,278,179,809.20x = 1,917,269,713.80 × 733,984,225.20
  4. Step 4: Simplify right side
    1,278,179,809.20x = 1,407,245,725,382,918,912
  5. Step 5: Solve for x
    x = 1,407,245,725,382,918,912/1,278,179,809.20
  6. Step 6: Final answer
    x = 1,100,976,337.80

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Double scale
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Similar ratio
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1.5x scale

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.