Home / 21,008,473.43-28,991,914.85-11,841,116.18

Finding the Fourth Proportional to 21,008,473.43, 28,991,914.85 and 11,841,116.18

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Solution

The fourth proportional to 21,008,473.43, 28,991,914.85 and 11,841,116.18 is: 16,340,865.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,473.43 : 28,991,914.85 = 11,841,116.18 : x
  2. Step 2: Convert to fraction form
    21,008,473.43/28,991,914.85 = 11,841,116.18/x
  3. Step 3: Cross multiply
    21,008,473.43x = 28,991,914.85 × 11,841,116.18
  4. Step 4: Simplify right side
    21,008,473.43x = 343,296,631,960,311.69
  5. Step 5: Solve for x
    x = 343,296,631,960,311.69/21,008,473.43
  6. Step 6: Final answer
    x = 16,340,865.18

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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.