Home / 18,723,044.34-28,082,554.47-12,696,459.66

Finding the Fourth Proportional to 18,723,044.34, 28,082,554.47 and 12,696,459.66

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Solution

The fourth proportional to 18,723,044.34, 28,082,554.47 and 12,696,459.66 is: 19,043,325.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,044.34 : 28,082,554.47 = 12,696,459.66 : x
  2. Step 2: Convert to fraction form
    18,723,044.34/28,082,554.47 = 12,696,459.66/x
  3. Step 3: Cross multiply
    18,723,044.34x = 28,082,554.47 × 12,696,459.66
  4. Step 4: Simplify right side
    18,723,044.34x = 356,549,019,978,107.69
  5. Step 5: Solve for x
    x = 356,549,019,978,107.69/18,723,044.34
  6. Step 6: Final answer
    x = 19,043,325.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.