Home / 13,315,650.37-18,388,288.39-12,590,222.98

Finding the Fourth Proportional to 13,315,650.37, 18,388,288.39 and 12,590,222.98

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Solution

The fourth proportional to 13,315,650.37, 18,388,288.39 and 12,590,222.98 is: 17,386,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,650.37 : 18,388,288.39 = 12,590,222.98 : x
  2. Step 2: Convert to fraction form
    13,315,650.37/18,388,288.39 = 12,590,222.98/x
  3. Step 3: Cross multiply
    13,315,650.37x = 18,388,288.39 × 12,590,222.98
  4. Step 4: Simplify right side
    13,315,650.37x = 231,512,651,097,858.56
  5. Step 5: Solve for x
    x = 231,512,651,097,858.56/13,315,650.37
  6. Step 6: Final answer
    x = 17,386,507.21

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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.