Home / 1,259,491,171.35-1,738,727,063.09-783,335,023.65

Finding the Fourth Proportional to 1,259,491,171.35, 1,738,727,063.09 and 783,335,023.65

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Solution

The fourth proportional to 1,259,491,171.35, 1,738,727,063.09 and 783,335,023.65 is: 1,081,393,689.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,491,171.35 : 1,738,727,063.09 = 783,335,023.65 : x
  2. Step 2: Convert to fraction form
    1,259,491,171.35/1,738,727,063.09 = 783,335,023.65/x
  3. Step 3: Cross multiply
    1,259,491,171.35x = 1,738,727,063.09 × 783,335,023.65
  4. Step 4: Simplify right side
    1,259,491,171.35x = 1,362,005,805,076,726,272
  5. Step 5: Solve for x
    x = 1,362,005,805,076,726,272/1,259,491,171.35
  6. Step 6: Final answer
    x = 1,081,393,689.82

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Double scale
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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.