Home / 1,278,300,676.15-1,765,273,263.79-1,208,659,651.06

Finding the Fourth Proportional to 1,278,300,676.15, 1,765,273,263.79 and 1,208,659,651.06

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Solution

The fourth proportional to 1,278,300,676.15, 1,765,273,263.79 and 1,208,659,651.06 is: 1,669,102,275.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,300,676.15 : 1,765,273,263.79 = 1,208,659,651.06 : x
  2. Step 2: Convert to fraction form
    1,278,300,676.15/1,765,273,263.79 = 1,208,659,651.06/x
  3. Step 3: Cross multiply
    1,278,300,676.15x = 1,765,273,263.79 × 1,208,659,651.06
  4. Step 4: Simplify right side
    1,278,300,676.15x = 2,133,614,567,037,968,640
  5. Step 5: Solve for x
    x = 2,133,614,567,037,968,640/1,278,300,676.15
  6. Step 6: Final answer
    x = 1,669,102,275.27

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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.