Home / 558,136,320.73-770,220,604.25-310,617,609.37

Finding the Fourth Proportional to 558,136,320.73, 770,220,604.25 and 310,617,609.37

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Solution

The fourth proportional to 558,136,320.73, 770,220,604.25 and 310,617,609.37 is: 428,648,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,136,320.73 : 770,220,604.25 = 310,617,609.37 : x
  2. Step 2: Convert to fraction form
    558,136,320.73/770,220,604.25 = 310,617,609.37/x
  3. Step 3: Cross multiply
    558,136,320.73x = 770,220,604.25 × 310,617,609.37
  4. Step 4: Simplify right side
    558,136,320.73x = 239,244,082,777,338,048
  5. Step 5: Solve for x
    x = 239,244,082,777,338,048/558,136,320.73
  6. Step 6: Final answer
    x = 428,648,116.76

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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.