Home / 481,491,005.28-664,660,989.66-325,069,985.58

Finding the Fourth Proportional to 481,491,005.28, 664,660,989.66 and 325,069,985.58

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Solution

The fourth proportional to 481,491,005.28, 664,660,989.66 and 325,069,985.58 is: 448,733,903.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,491,005.28 : 664,660,989.66 = 325,069,985.58 : x
  2. Step 2: Convert to fraction form
    481,491,005.28/664,660,989.66 = 325,069,985.58/x
  3. Step 3: Cross multiply
    481,491,005.28x = 664,660,989.66 × 325,069,985.58
  4. Step 4: Simplify right side
    481,491,005.28x = 216,061,338,324,364,704
  5. Step 5: Solve for x
    x = 216,061,338,324,364,704/481,491,005.28
  6. Step 6: Final answer
    x = 448,733,903.55

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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.