Home / 13,509,896.76-18,643,517.64-7,314,836.88

Finding the Fourth Proportional to 13,509,896.76, 18,643,517.64 and 7,314,836.88

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Solution

The fourth proportional to 13,509,896.76, 18,643,517.64 and 7,314,836.88 is: 10,094,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509,896.76 : 18,643,517.64 = 7,314,836.88 : x
  2. Step 2: Convert to fraction form
    13,509,896.76/18,643,517.64 = 7,314,836.88/x
  3. Step 3: Cross multiply
    13,509,896.76x = 18,643,517.64 × 7,314,836.88
  4. Step 4: Simplify right side
    13,509,896.76x = 136,374,290,406,002.56
  5. Step 5: Solve for x
    x = 136,374,290,406,002.56/13,509,896.76
  6. Step 6: Final answer
    x = 10,094,399.15

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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.