Home / 13,315,658.12-18,388,299.06-12,590,230.74

Finding the Fourth Proportional to 13,315,658.12, 18,388,299.06 and 12,590,230.74

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Solution

The fourth proportional to 13,315,658.12, 18,388,299.06 and 12,590,230.74 is: 17,386,517.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,658.12 : 18,388,299.06 = 12,590,230.74 : x
  2. Step 2: Convert to fraction form
    13,315,658.12/18,388,299.06 = 12,590,230.74/x
  3. Step 3: Cross multiply
    13,315,658.12x = 18,388,299.06 × 12,590,230.74
  4. Step 4: Simplify right side
    13,315,658.12x = 231,512,928,081,525.09
  5. Step 5: Solve for x
    x = 231,512,928,081,525.09/13,315,658.12
  6. Step 6: Final answer
    x = 17,386,517.89

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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.