Home / 21,008,473.47-28,991,914.88-11,841,116.22

Finding the Fourth Proportional to 21,008,473.47, 28,991,914.88 and 11,841,116.22

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Solution

The fourth proportional to 21,008,473.47, 28,991,914.88 and 11,841,116.22 is: 16,340,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,473.47 : 28,991,914.88 = 11,841,116.22 : x
  2. Step 2: Convert to fraction form
    21,008,473.47/28,991,914.88 = 11,841,116.22/x
  3. Step 3: Cross multiply
    21,008,473.47x = 28,991,914.88 × 11,841,116.22
  4. Step 4: Simplify right side
    21,008,473.47x = 343,296,633,475,221.81
  5. Step 5: Solve for x
    x = 343,296,633,475,221.81/21,008,473.47
  6. Step 6: Final answer
    x = 16,340,865.22

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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.