Home / 13,889,037.77-20,812,634.81-12,375,431.47

Finding the Fourth Proportional to 13,889,037.77, 20,812,634.81 and 12,375,431.47

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Solution

The fourth proportional to 13,889,037.77, 20,812,634.81 and 12,375,431.47 is: 18,544,505.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889,037.77 : 20,812,634.81 = 12,375,431.47 : x
  2. Step 2: Convert to fraction form
    13,889,037.77/20,812,634.81 = 12,375,431.47/x
  3. Step 3: Cross multiply
    13,889,037.77x = 20,812,634.81 × 12,375,431.47
  4. Step 4: Simplify right side
    13,889,037.77x = 257,565,335,811,837.97
  5. Step 5: Solve for x
    x = 257,565,335,811,837.97/13,889,037.77
  6. Step 6: Final answer
    x = 18,544,505.39

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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.