Home / 13,571,976.89-18,729,453.47-7,377,038.15

Finding the Fourth Proportional to 13,571,976.89, 18,729,453.47 and 7,377,038.15

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Solution

The fourth proportional to 13,571,976.89, 18,729,453.47 and 7,377,038.15 is: 10,180,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571,976.89 : 18,729,453.47 = 7,377,038.15 : x
  2. Step 2: Convert to fraction form
    13,571,976.89/18,729,453.47 = 7,377,038.15/x
  3. Step 3: Cross multiply
    13,571,976.89x = 18,729,453.47 × 7,377,038.15
  4. Step 4: Simplify right side
    13,571,976.89x = 138,167,892,646,307.41
  5. Step 5: Solve for x
    x = 138,167,892,646,307.41/13,571,976.89
  6. Step 6: Final answer
    x = 10,180,380.78

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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.