Home / 8,503,297.40-12,786,438.90-7,117,614.20

Finding the Fourth Proportional to 8,503,297.40, 12,786,438.90 and 7,117,614.20

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Solution

The fourth proportional to 8,503,297.40, 12,786,438.90 and 7,117,614.20 is: 10,702,782.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503,297.40 : 12,786,438.90 = 7,117,614.20 : x
  2. Step 2: Convert to fraction form
    8,503,297.40/12,786,438.90 = 7,117,614.20/x
  3. Step 3: Cross multiply
    8,503,297.40x = 12,786,438.90 × 7,117,614.20
  4. Step 4: Simplify right side
    8,503,297.40x = 91,008,939,082,072.39
  5. Step 5: Solve for x
    x = 91,008,939,082,072.39/8,503,297.40
  6. Step 6: Final answer
    x = 10,702,782.09

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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.