Home / 20,885,668.67-31,328,459.94-11,783,634.38

Finding the Fourth Proportional to 20,885,668.67, 31,328,459.94 and 11,783,634.38

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Solution

The fourth proportional to 20,885,668.67, 31,328,459.94 and 11,783,634.38 is: 17,675,427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,668.67 : 31,328,459.94 = 11,783,634.38 : x
  2. Step 2: Convert to fraction form
    20,885,668.67/31,328,459.94 = 11,783,634.38/x
  3. Step 3: Cross multiply
    20,885,668.67x = 31,328,459.94 × 11,783,634.38
  4. Step 4: Simplify right side
    20,885,668.67x = 369,163,117,626,464.81
  5. Step 5: Solve for x
    x = 369,163,117,626,464.81/20,885,668.67
  6. Step 6: Final answer
    x = 17,675,427.27

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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.