Home / 13,673,561.04-18,867,418.11-7,871,221.62

Finding the Fourth Proportional to 13,673,561.04, 18,867,418.11 and 7,871,221.62

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Solution

The fourth proportional to 13,673,561.04, 18,867,418.11 and 7,871,221.62 is: 10,861,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673,561.04 : 18,867,418.11 = 7,871,221.62 : x
  2. Step 2: Convert to fraction form
    13,673,561.04/18,867,418.11 = 7,871,221.62/x
  3. Step 3: Cross multiply
    13,673,561.04x = 18,867,418.11 × 7,871,221.62
  4. Step 4: Simplify right side
    13,673,561.04x = 148,509,629,341,011.53
  5. Step 5: Solve for x
    x = 148,509,629,341,011.53/13,673,561.04
  6. Step 6: Final answer
    x = 10,861,079.20

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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.