Home / 13,145,401.28-18,140,319.68-7,344,226.72

Finding the Fourth Proportional to 13,145,401.28, 18,140,319.68 and 7,344,226.72

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Solution

The fourth proportional to 13,145,401.28, 18,140,319.68 and 7,344,226.72 is: 10,134,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,401.28 : 18,140,319.68 = 7,344,226.72 : x
  2. Step 2: Convert to fraction form
    13,145,401.28/18,140,319.68 = 7,344,226.72/x
  3. Step 3: Cross multiply
    13,145,401.28x = 18,140,319.68 × 7,344,226.72
  4. Step 4: Simplify right side
    13,145,401.28x = 133,226,620,503,197.84
  5. Step 5: Solve for x
    x = 133,226,620,503,197.84/13,145,401.28
  6. Step 6: Final answer
    x = 10,134,846.22

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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.