Home / 13,685,830.67-18,855,473.42-11,234,560.88

Finding the Fourth Proportional to 13,685,830.67, 18,855,473.42 and 11,234,560.88

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Solution

The fourth proportional to 13,685,830.67, 18,855,473.42 and 11,234,560.88 is: 15,478,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685,830.67 : 18,855,473.42 = 11,234,560.88 : x
  2. Step 2: Convert to fraction form
    13,685,830.67/18,855,473.42 = 11,234,560.88/x
  3. Step 3: Cross multiply
    13,685,830.67x = 18,855,473.42 × 11,234,560.88
  4. Step 4: Simplify right side
    13,685,830.67x = 211,832,964,133,436.91
  5. Step 5: Solve for x
    x = 211,832,964,133,436.91/13,685,830.67
  6. Step 6: Final answer
    x = 15,478,268.67

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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.