Home / 12,486,523.80-18,715,788.90-5,296,834.20

Finding the Fourth Proportional to 12,486,523.80, 18,715,788.90 and 5,296,834.20

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Solution

The fourth proportional to 12,486,523.80, 18,715,788.90 and 5,296,834.20 is: 7,939,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486,523.80 : 18,715,788.90 = 5,296,834.20 : x
  2. Step 2: Convert to fraction form
    12,486,523.80/18,715,788.90 = 5,296,834.20/x
  3. Step 3: Cross multiply
    12,486,523.80x = 18,715,788.90 × 5,296,834.20
  4. Step 4: Simplify right side
    12,486,523.80x = 99,134,430,725,500.38
  5. Step 5: Solve for x
    x = 99,134,430,725,500.38/12,486,523.80
  6. Step 6: Final answer
    x = 7,939,313.80

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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.