Home / 13,673,628.16-18,867,510.44-7,871,288.80

Finding the Fourth Proportional to 13,673,628.16, 18,867,510.44 and 7,871,288.80

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Solution

The fourth proportional to 13,673,628.16, 18,867,510.44 and 7,871,288.80 is: 10,861,171.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673,628.16 : 18,867,510.44 = 7,871,288.80 : x
  2. Step 2: Convert to fraction form
    13,673,628.16/18,867,510.44 = 7,871,288.80/x
  3. Step 3: Cross multiply
    13,673,628.16x = 18,867,510.44 × 7,871,288.80
  4. Step 4: Simplify right side
    13,673,628.16x = 148,511,623,610,255.09
  5. Step 5: Solve for x
    x = 148,511,623,610,255.09/13,673,628.16
  6. Step 6: Final answer
    x = 10,861,171.73

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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.