Home / 1,321,995,667.82-1,982,921,739.57-401,800,261.91

Finding the Fourth Proportional to 1,321,995,667.82, 1,982,921,739.57 and 401,800,261.91

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Solution

The fourth proportional to 1,321,995,667.82, 1,982,921,739.57 and 401,800,261.91 is: 602,678,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,995,667.82 : 1,982,921,739.57 = 401,800,261.91 : x
  2. Step 2: Convert to fraction form
    1,321,995,667.82/1,982,921,739.57 = 401,800,261.91/x
  3. Step 3: Cross multiply
    1,321,995,667.82x = 1,982,921,739.57 × 401,800,261.91
  4. Step 4: Simplify right side
    1,321,995,667.82x = 796,738,474,296,344,064
  5. Step 5: Solve for x
    x = 796,738,474,296,344,064/1,321,995,667.82
  6. Step 6: Final answer
    x = 602,678,581.85

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1.5x scale

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.