Home / 20,885,670.43-31,328,462.57-11,783,636.14

Finding the Fourth Proportional to 20,885,670.43, 31,328,462.57 and 11,783,636.14

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Solution

The fourth proportional to 20,885,670.43, 31,328,462.57 and 11,783,636.14 is: 17,675,429.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,670.43 : 31,328,462.57 = 11,783,636.14 : x
  2. Step 2: Convert to fraction form
    20,885,670.43/31,328,462.57 = 11,783,636.14/x
  3. Step 3: Cross multiply
    20,885,670.43x = 31,328,462.57 × 11,783,636.14
  4. Step 4: Simplify right side
    20,885,670.43x = 369,163,203,534,928.81
  5. Step 5: Solve for x
    x = 369,163,203,534,928.81/20,885,670.43
  6. Step 6: Final answer
    x = 17,675,429.90

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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.