Home / 15,337,389.18-21,139,916-13,472,031.27

Finding the Fourth Proportional to 15,337,389.18, 21,139,916 and 13,472,031.27

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Solution

The fourth proportional to 15,337,389.18, 21,139,916 and 13,472,031.27 is: 18,568,845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,337,389.18 : 21,139,916 = 13,472,031.27 : x
  2. Step 2: Convert to fraction form
    15,337,389.18/21,139,916 = 13,472,031.27/x
  3. Step 3: Cross multiply
    15,337,389.18x = 21,139,916 × 13,472,031.27
  4. Step 4: Simplify right side
    15,337,389.18x = 284,797,609,397,173.31
  5. Step 5: Solve for x
    x = 284,797,609,397,173.31/15,337,389.18
  6. Step 6: Final answer
    x = 18,568,845.46

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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.