Home / 66,472,427.94-91,747,256.06-38,979,213.54

Finding the Fourth Proportional to 66,472,427.94, 91,747,256.06 and 38,979,213.54

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Solution

The fourth proportional to 66,472,427.94, 91,747,256.06 and 38,979,213.54 is: 53,800,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472,427.94 : 91,747,256.06 = 38,979,213.54 : x
  2. Step 2: Convert to fraction form
    66,472,427.94/91,747,256.06 = 38,979,213.54/x
  3. Step 3: Cross multiply
    66,472,427.94x = 91,747,256.06 × 38,979,213.54
  4. Step 4: Simplify right side
    66,472,427.94x = 3,576,235,885,671,799
  5. Step 5: Solve for x
    x = 3,576,235,885,671,799/66,472,427.94
  6. Step 6: Final answer
    x = 53,800,289.78

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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.