Home / 13,331,421.02-18,398,857.20-7,530,576.42

Finding the Fourth Proportional to 13,331,421.02, 18,398,857.20 and 7,530,576.42

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Solution

The fourth proportional to 13,331,421.02, 18,398,857.20 and 7,530,576.42 is: 10,393,040.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331,421.02 : 18,398,857.20 = 7,530,576.42 : x
  2. Step 2: Convert to fraction form
    13,331,421.02/18,398,857.20 = 7,530,576.42/x
  3. Step 3: Cross multiply
    13,331,421.02x = 18,398,857.20 × 7,530,576.42
  4. Step 4: Simplify right side
    13,331,421.02x = 138,554,000,185,267.22
  5. Step 5: Solve for x
    x = 138,554,000,185,267.22/13,331,421.02
  6. Step 6: Final answer
    x = 10,393,040.62

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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.