Home / 304,777,621.28-420,628,008.64-170,851,709.57

Finding the Fourth Proportional to 304,777,621.28, 420,628,008.64 and 170,851,709.57

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Solution

The fourth proportional to 304,777,621.28, 420,628,008.64 and 170,851,709.57 is: 235,794,918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,777,621.28 : 420,628,008.64 = 170,851,709.57 : x
  2. Step 2: Convert to fraction form
    304,777,621.28/420,628,008.64 = 170,851,709.57/x
  3. Step 3: Cross multiply
    304,777,621.28x = 420,628,008.64 × 170,851,709.57
  4. Step 4: Simplify right side
    304,777,621.28x = 71,865,014,367,065,584
  5. Step 5: Solve for x
    x = 71,865,014,367,065,584/304,777,621.28
  6. Step 6: Final answer
    x = 235,794,918.49

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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.