Home / 13,416,020.70-18,525,615.96-12,982,190.50

Finding the Fourth Proportional to 13,416,020.70, 18,525,615.96 and 12,982,190.50

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Solution

The fourth proportional to 13,416,020.70, 18,525,615.96 and 12,982,190.50 is: 17,926,558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416,020.70 : 18,525,615.96 = 12,982,190.50 : x
  2. Step 2: Convert to fraction form
    13,416,020.70/18,525,615.96 = 12,982,190.50/x
  3. Step 3: Cross multiply
    13,416,020.70x = 18,525,615.96 × 12,982,190.50
  4. Step 4: Simplify right side
    13,416,020.70x = 240,503,075,522,560.41
  5. Step 5: Solve for x
    x = 240,503,075,522,560.41/13,416,020.70
  6. Step 6: Final answer
    x = 17,926,558.17

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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.