Home / 39,210,757.89-54,112,338.96-21,808,361.49

Finding the Fourth Proportional to 39,210,757.89, 54,112,338.96 and 21,808,361.49

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Solution

The fourth proportional to 39,210,757.89, 54,112,338.96 and 21,808,361.49 is: 30,096,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,210,757.89 : 54,112,338.96 = 21,808,361.49 : x
  2. Step 2: Convert to fraction form
    39,210,757.89/54,112,338.96 = 21,808,361.49/x
  3. Step 3: Cross multiply
    39,210,757.89x = 54,112,338.96 × 21,808,361.49
  4. Step 4: Simplify right side
    39,210,757.89x = 1,180,101,449,109,090.50
  5. Step 5: Solve for x
    x = 1,180,101,449,109,090.50/39,210,757.89
  6. Step 6: Final answer
    x = 30,096,369.28

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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.