Home / 13,143,090.36-18,137,464.92-7,341,872.52

Finding the Fourth Proportional to 13,143,090.36, 18,137,464.92 and 7,341,872.52

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Solution

The fourth proportional to 13,143,090.36, 18,137,464.92 and 7,341,872.52 is: 10,131,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143,090.36 : 18,137,464.92 = 7,341,872.52 : x
  2. Step 2: Convert to fraction form
    13,143,090.36/18,137,464.92 = 7,341,872.52/x
  3. Step 3: Cross multiply
    13,143,090.36x = 18,137,464.92 × 7,341,872.52
  4. Step 4: Simplify right side
    13,143,090.36x = 133,162,955,278,612
  5. Step 5: Solve for x
    x = 133,162,955,278,612/13,143,090.36
  6. Step 6: Final answer
    x = 10,131,784.20

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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.