Home / 30,491,973.60-45,728,250.12-10,016,940.78

Finding the Fourth Proportional to 30,491,973.60, 45,728,250.12 and 10,016,940.78

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Solution

The fourth proportional to 30,491,973.60, 45,728,250.12 and 10,016,940.78 is: 15,022,221.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,491,973.60 : 45,728,250.12 = 10,016,940.78 : x
  2. Step 2: Convert to fraction form
    30,491,973.60/45,728,250.12 = 10,016,940.78/x
  3. Step 3: Cross multiply
    30,491,973.60x = 45,728,250.12 × 10,016,940.78
  4. Step 4: Simplify right side
    30,491,973.60x = 458,057,173,425,067.81
  5. Step 5: Solve for x
    x = 458,057,173,425,067.81/30,491,973.60
  6. Step 6: Final answer
    x = 15,022,221.24

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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.