Home / 989,844,327.20-1,485,616,796.40-437,995,992.80

Finding the Fourth Proportional to 989,844,327.20, 1,485,616,796.40 and 437,995,992.80

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Solution

The fourth proportional to 989,844,327.20, 1,485,616,796.40 and 437,995,992.80 is: 657,370,240.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,844,327.20 : 1,485,616,796.40 = 437,995,992.80 : x
  2. Step 2: Convert to fraction form
    989,844,327.20/1,485,616,796.40 = 437,995,992.80/x
  3. Step 3: Cross multiply
    989,844,327.20x = 1,485,616,796.40 × 437,995,992.80
  4. Step 4: Simplify right side
    989,844,327.20x = 650,694,203,659,573,504
  5. Step 5: Solve for x
    x = 650,694,203,659,573,504/989,844,327.20
  6. Step 6: Final answer
    x = 657,370,240.73

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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.