Home / 28,720,936.24-39,629,471.26-17,119,579.20

Finding the Fourth Proportional to 28,720,936.24, 39,629,471.26 and 17,119,579.20

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Solution

The fourth proportional to 28,720,936.24, 39,629,471.26 and 17,119,579.20 is: 23,621,788.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,720,936.24 : 39,629,471.26 = 17,119,579.20 : x
  2. Step 2: Convert to fraction form
    28,720,936.24/39,629,471.26 = 17,119,579.20/x
  3. Step 3: Cross multiply
    28,720,936.24x = 39,629,471.26 × 17,119,579.20
  4. Step 4: Simplify right side
    28,720,936.24x = 678,439,871,889,693.75
  5. Step 5: Solve for x
    x = 678,439,871,889,693.75/28,720,936.24
  6. Step 6: Final answer
    x = 23,621,788.17

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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.