Home / 400,090,825.44-600,243,969.78-205,896,422.88

Finding the Fourth Proportional to 400,090,825.44, 600,243,969.78 and 205,896,422.88

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Solution

The fourth proportional to 400,090,825.44, 600,243,969.78 and 205,896,422.88 is: 308,900,075.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,090,825.44 : 600,243,969.78 = 205,896,422.88 : x
  2. Step 2: Convert to fraction form
    400,090,825.44/600,243,969.78 = 205,896,422.88/x
  3. Step 3: Cross multiply
    400,090,825.44x = 600,243,969.78 × 205,896,422.88
  4. Step 4: Simplify right side
    400,090,825.44x = 123,588,086,232,992,816
  5. Step 5: Solve for x
    x = 123,588,086,232,992,816/400,090,825.44
  6. Step 6: Final answer
    x = 308,900,075.62

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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.