Home / 39,210,757.92-54,112,338.96-21,808,361.52

Finding the Fourth Proportional to 39,210,757.92, 54,112,338.96 and 21,808,361.52

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Solution

The fourth proportional to 39,210,757.92, 54,112,338.96 and 21,808,361.52 is: 30,096,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,210,757.92 : 54,112,338.96 = 21,808,361.52 : x
  2. Step 2: Convert to fraction form
    39,210,757.92/54,112,338.96 = 21,808,361.52/x
  3. Step 3: Cross multiply
    39,210,757.92x = 54,112,338.96 × 21,808,361.52
  4. Step 4: Simplify right side
    39,210,757.92x = 1,180,101,450,732,460.75
  5. Step 5: Solve for x
    x = 1,180,101,450,732,460.75/39,210,757.92
  6. Step 6: Final answer
    x = 30,096,369.30

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1.5x scale

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.