Home / 12,586,090.36-18,871,542.16-4,805,512.72

Finding the Fourth Proportional to 12,586,090.36, 18,871,542.16 and 4,805,512.72

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Solution

The fourth proportional to 12,586,090.36, 18,871,542.16 and 4,805,512.72 is: 7,205,369.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586,090.36 : 18,871,542.16 = 4,805,512.72 : x
  2. Step 2: Convert to fraction form
    12,586,090.36/18,871,542.16 = 4,805,512.72/x
  3. Step 3: Cross multiply
    12,586,090.36x = 18,871,542.16 × 4,805,512.72
  4. Step 4: Simplify right side
    12,586,090.36x = 90,687,435,895,896.27
  5. Step 5: Solve for x
    x = 90,687,435,895,896.27/12,586,090.36
  6. Step 6: Final answer
    x = 7,205,369.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.