Home / 13,685,186.67-18,883,526.10-8,311,799.21

Finding the Fourth Proportional to 13,685,186.67, 18,883,526.10 and 8,311,799.21

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Solution

The fourth proportional to 13,685,186.67, 18,883,526.10 and 8,311,799.21 is: 11,469,049.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685,186.67 : 18,883,526.10 = 8,311,799.21 : x
  2. Step 2: Convert to fraction form
    13,685,186.67/18,883,526.10 = 8,311,799.21/x
  3. Step 3: Cross multiply
    13,685,186.67x = 18,883,526.10 × 8,311,799.21
  4. Step 4: Simplify right side
    13,685,186.67x = 156,956,077,241,161.38
  5. Step 5: Solve for x
    x = 156,956,077,241,161.38/13,685,186.67
  6. Step 6: Final answer
    x = 11,469,049.05

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1.5x scale

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.