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Finding the Fourth Proportional to 304,777,643.64, 420,628,039.56 and 170,851,731.96

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Solution

The fourth proportional to 304,777,643.64, 420,628,039.56 and 170,851,731.96 is: 235,794,949.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,777,643.64 : 420,628,039.56 = 170,851,731.96 : x
  2. Step 2: Convert to fraction form
    304,777,643.64/420,628,039.56 = 170,851,731.96/x
  3. Step 3: Cross multiply
    304,777,643.64x = 420,628,039.56 × 170,851,731.96
  4. Step 4: Simplify right side
    304,777,643.64x = 71,865,029,069,765,400
  5. Step 5: Solve for x
    x = 71,865,029,069,765,400/304,777,643.64
  6. Step 6: Final answer
    x = 235,794,949.43

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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.