Home / 1,387,012,783.88-2,080,200,805.72-826,933,091.78

Finding the Fourth Proportional to 1,387,012,783.88, 2,080,200,805.72 and 826,933,091.78

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Solution

The fourth proportional to 1,387,012,783.88, 2,080,200,805.72 and 826,933,091.78 is: 1,240,209,826.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,012,783.88 : 2,080,200,805.72 = 826,933,091.78 : x
  2. Step 2: Convert to fraction form
    1,387,012,783.88/2,080,200,805.72 = 826,933,091.78/x
  3. Step 3: Cross multiply
    1,387,012,783.88x = 2,080,200,805.72 × 826,933,091.78
  4. Step 4: Simplify right side
    1,387,012,783.88x = 1,720,186,883,797,286,656
  5. Step 5: Solve for x
    x = 1,720,186,883,797,286,656/1,387,012,783.88
  6. Step 6: Final answer
    x = 1,240,209,826.32

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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.