Home / 1,382,910,723.27-1,907,210,716.30-980,227,986.86

Finding the Fourth Proportional to 1,382,910,723.27, 1,907,210,716.30 and 980,227,986.86

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Solution

The fourth proportional to 1,382,910,723.27, 1,907,210,716.30 and 980,227,986.86 is: 1,351,859,732.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,910,723.27 : 1,907,210,716.30 = 980,227,986.86 : x
  2. Step 2: Convert to fraction form
    1,382,910,723.27/1,907,210,716.30 = 980,227,986.86/x
  3. Step 3: Cross multiply
    1,382,910,723.27x = 1,907,210,716.30 × 980,227,986.86
  4. Step 4: Simplify right side
    1,382,910,723.27x = 1,869,501,320,958,884,864
  5. Step 5: Solve for x
    x = 1,869,501,320,958,884,864/1,382,910,723.27
  6. Step 6: Final answer
    x = 1,351,859,732.88

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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.