Home / 28,597,662.09-39,483,777.11-21,970,447.56

Finding the Fourth Proportional to 28,597,662.09, 39,483,777.11 and 21,970,447.56

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Solution

The fourth proportional to 28,597,662.09, 39,483,777.11 and 21,970,447.56 is: 30,333,817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,597,662.09 : 39,483,777.11 = 21,970,447.56 : x
  2. Step 2: Convert to fraction form
    28,597,662.09/39,483,777.11 = 21,970,447.56/x
  3. Step 3: Cross multiply
    28,597,662.09x = 39,483,777.11 × 21,970,447.56
  4. Step 4: Simplify right side
    28,597,662.09x = 867,476,254,356,131
  5. Step 5: Solve for x
    x = 867,476,254,356,131/28,597,662.09
  6. Step 6: Final answer
    x = 30,333,817.21

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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.