Home / 30,871,619.28-42,601,375.44-17,120,288.16

Finding the Fourth Proportional to 30,871,619.28, 42,601,375.44 and 17,120,288.16

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Solution

The fourth proportional to 30,871,619.28, 42,601,375.44 and 17,120,288.16 is: 23,625,188.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,871,619.28 : 42,601,375.44 = 17,120,288.16 : x
  2. Step 2: Convert to fraction form
    30,871,619.28/42,601,375.44 = 17,120,288.16/x
  3. Step 3: Cross multiply
    30,871,619.28x = 42,601,375.44 × 17,120,288.16
  4. Step 4: Simplify right side
    30,871,619.28x = 729,347,823,545,146.75
  5. Step 5: Solve for x
    x = 729,347,823,545,146.75/30,871,619.28
  6. Step 6: Final answer
    x = 23,625,188.46

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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.