Home / 13,137,509.40-18,138,293.73-11,758,464.96

Finding the Fourth Proportional to 13,137,509.40, 18,138,293.73 and 11,758,464.96

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Solution

The fourth proportional to 13,137,509.40, 18,138,293.73 and 11,758,464.96 is: 16,234,316.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137,509.40 : 18,138,293.73 = 11,758,464.96 : x
  2. Step 2: Convert to fraction form
    13,137,509.40/18,138,293.73 = 11,758,464.96/x
  3. Step 3: Cross multiply
    13,137,509.40x = 18,138,293.73 × 11,758,464.96
  4. Step 4: Simplify right side
    13,137,509.40x = 213,278,491,258,392.72
  5. Step 5: Solve for x
    x = 213,278,491,258,392.72/13,137,509.40
  6. Step 6: Final answer
    x = 16,234,316.93

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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.