Home / 402,268,809.20-603,403,213.80-143,775,906.80

Finding the Fourth Proportional to 402,268,809.20, 603,403,213.80 and 143,775,906.80

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Solution

The fourth proportional to 402,268,809.20, 603,403,213.80 and 143,775,906.80 is: 215,663,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,268,809.20 : 603,403,213.80 = 143,775,906.80 : x
  2. Step 2: Convert to fraction form
    402,268,809.20/603,403,213.80 = 143,775,906.80/x
  3. Step 3: Cross multiply
    402,268,809.20x = 603,403,213.80 × 143,775,906.80
  4. Step 4: Simplify right side
    402,268,809.20x = 86,754,844,230,129,280
  5. Step 5: Solve for x
    x = 86,754,844,230,129,280/402,268,809.20
  6. Step 6: Final answer
    x = 215,663,860.20

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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.