Home / 202,723,643.52-279,989,574.75-137,420,173.44

Finding the Fourth Proportional to 202,723,643.52, 279,989,574.75 and 137,420,173.44

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Solution

The fourth proportional to 202,723,643.52, 279,989,574.75 and 137,420,173.44 is: 189,796,391.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,723,643.52 : 279,989,574.75 = 137,420,173.44 : x
  2. Step 2: Convert to fraction form
    202,723,643.52/279,989,574.75 = 137,420,173.44/x
  3. Step 3: Cross multiply
    202,723,643.52x = 279,989,574.75 × 137,420,173.44
  4. Step 4: Simplify right side
    202,723,643.52x = 38,476,215,923,536,840
  5. Step 5: Solve for x
    x = 38,476,215,923,536,840/202,723,643.52
  6. Step 6: Final answer
    x = 189,796,391.06

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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.