Home / 28,471,628.83-42,775,575.72-18,256,502.47

Finding the Fourth Proportional to 28,471,628.83, 42,775,575.72 and 18,256,502.47

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Solution

The fourth proportional to 28,471,628.83, 42,775,575.72 and 18,256,502.47 is: 27,428,441.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,628.83 : 42,775,575.72 = 18,256,502.47 : x
  2. Step 2: Convert to fraction form
    28,471,628.83/42,775,575.72 = 18,256,502.47/x
  3. Step 3: Cross multiply
    28,471,628.83x = 42,775,575.72 × 18,256,502.47
  4. Step 4: Simplify right side
    28,471,628.83x = 780,932,403,787,852
  5. Step 5: Solve for x
    x = 780,932,403,787,852/28,471,628.83
  6. Step 6: Final answer
    x = 27,428,441.43

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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.