Home / 13,673,538.54-18,867,387.11-7,871,199.12

Finding the Fourth Proportional to 13,673,538.54, 18,867,387.11 and 7,871,199.12

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Solution

The fourth proportional to 13,673,538.54, 18,867,387.11 and 7,871,199.12 is: 10,861,048.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673,538.54 : 18,867,387.11 = 7,871,199.12 : x
  2. Step 2: Convert to fraction form
    13,673,538.54/18,867,387.11 = 7,871,199.12/x
  3. Step 3: Cross multiply
    13,673,538.54x = 18,867,387.11 × 7,871,199.12
  4. Step 4: Simplify right side
    13,673,538.54x = 148,508,960,777,575.34
  5. Step 5: Solve for x
    x = 148,508,960,777,575.34/13,673,538.54
  6. Step 6: Final answer
    x = 10,861,048.17

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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.