Home / 13,416,019.70-18,525,614.58-12,982,189.50

Finding the Fourth Proportional to 13,416,019.70, 18,525,614.58 and 12,982,189.50

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Solution

The fourth proportional to 13,416,019.70, 18,525,614.58 and 12,982,189.50 is: 17,926,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416,019.70 : 18,525,614.58 = 12,982,189.50 : x
  2. Step 2: Convert to fraction form
    13,416,019.70/18,525,614.58 = 12,982,189.50/x
  3. Step 3: Cross multiply
    13,416,019.70x = 18,525,614.58 × 12,982,189.50
  4. Step 4: Simplify right side
    13,416,019.70x = 240,503,039,081,522.88
  5. Step 5: Solve for x
    x = 240,503,039,081,522.88/13,416,019.70
  6. Step 6: Final answer
    x = 17,926,556.80

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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.