Home / 1,399,561,100,198.30-2,099,341,655,334.30-393,405,876,484.95

Finding the Fourth Proportional to 1,399,561,100,198.30, 2,099,341,655,334.30 and 393,405,876,484.95

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Solution

The fourth proportional to 1,399,561,100,198.30, 2,099,341,655,334.30 and 393,405,876,484.95 is: 590,108,816,143.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,561,100,198.30 : 2,099,341,655,334.30 = 393,405,876,484.95 : x
  2. Step 2: Convert to fraction form
    1,399,561,100,198.30/2,099,341,655,334.30 = 393,405,876,484.95/x
  3. Step 3: Cross multiply
    1,399,561,100,198.30x = 2,099,341,655,334.30 × 393,405,876,484.95
  4. Step 4: Simplify right side
    1,399,561,100,198.30x = 825,893,343,958,156,210,864,128
  5. Step 5: Solve for x
    x = 825,893,343,958,156,210,864,128/1,399,561,100,198.30
  6. Step 6: Final answer
    x = 590,108,816,143.25

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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.