Home / 1,261,346,011.01-1,728,015,149.79-1,214,187,214.85

Finding the Fourth Proportional to 1,261,346,011.01, 1,728,015,149.79 and 1,214,187,214.85

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Solution

The fourth proportional to 1,261,346,011.01, 1,728,015,149.79 and 1,214,187,214.85 is: 1,663,408,679.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,346,011.01 : 1,728,015,149.79 = 1,214,187,214.85 : x
  2. Step 2: Convert to fraction form
    1,261,346,011.01/1,728,015,149.79 = 1,214,187,214.85/x
  3. Step 3: Cross multiply
    1,261,346,011.01x = 1,728,015,149.79 × 1,214,187,214.85
  4. Step 4: Simplify right side
    1,261,346,011.01x = 2,098,133,901,942,125,568
  5. Step 5: Solve for x
    x = 2,098,133,901,942,125,568/1,261,346,011.01
  6. Step 6: Final answer
    x = 1,663,408,679.00

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.