Home / 665,747,879.36-918,801,227.04-383,500,074.56

Finding the Fourth Proportional to 665,747,879.36, 918,801,227.04 and 383,500,074.56

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Solution

The fourth proportional to 665,747,879.36, 918,801,227.04 and 383,500,074.56 is: 529,269,938.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,747,879.36 : 918,801,227.04 = 383,500,074.56 : x
  2. Step 2: Convert to fraction form
    665,747,879.36/918,801,227.04 = 383,500,074.56/x
  3. Step 3: Cross multiply
    665,747,879.36x = 918,801,227.04 × 383,500,074.56
  4. Step 4: Simplify right side
    665,747,879.36x = 352,360,339,075,659,456
  5. Step 5: Solve for x
    x = 352,360,339,075,659,456/665,747,879.36
  6. Step 6: Final answer
    x = 529,269,938.37

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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.