Home / 1,603,770,145-2,405,665,846.30-621,305,797.12

Finding the Fourth Proportional to 1,603,770,145, 2,405,665,846.30 and 621,305,797.12

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Solution

The fourth proportional to 1,603,770,145, 2,405,665,846.30 and 621,305,797.12 is: 931,962,813.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,770,145 : 2,405,665,846.30 = 621,305,797.12 : x
  2. Step 2: Convert to fraction form
    1,603,770,145/2,405,665,846.30 = 621,305,797.12/x
  3. Step 3: Cross multiply
    1,603,770,145x = 2,405,665,846.30 × 621,305,797.12
  4. Step 4: Simplify right side
    1,603,770,145x = 1,494,654,136,239,781,120
  5. Step 5: Solve for x
    x = 1,494,654,136,239,781,120/1,603,770,145
  6. Step 6: Final answer
    x = 931,962,813.31

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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.