Home / 662,820,017.88-993,104,896.32-399,952,198.80

Finding the Fourth Proportional to 662,820,017.88, 993,104,896.32 and 399,952,198.80

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Solution

The fourth proportional to 662,820,017.88, 993,104,896.32 and 399,952,198.80 is: 599,249,383.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,820,017.88 : 993,104,896.32 = 399,952,198.80 : x
  2. Step 2: Convert to fraction form
    662,820,017.88/993,104,896.32 = 399,952,198.80/x
  3. Step 3: Cross multiply
    662,820,017.88x = 993,104,896.32 × 399,952,198.80
  4. Step 4: Simplify right side
    662,820,017.88x = 397,194,486,922,230,080
  5. Step 5: Solve for x
    x = 397,194,486,922,230,080/662,820,017.88
  6. Step 6: Final answer
    x = 599,249,383.25

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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.