Home / 18,861,647.42-28,303,449.88-7,931,046.94

Finding the Fourth Proportional to 18,861,647.42, 28,303,449.88 and 7,931,046.94

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Solution

The fourth proportional to 18,861,647.42, 28,303,449.88 and 7,931,046.94 is: 11,901,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861,647.42 : 28,303,449.88 = 7,931,046.94 : x
  2. Step 2: Convert to fraction form
    18,861,647.42/28,303,449.88 = 7,931,046.94/x
  3. Step 3: Cross multiply
    18,861,647.42x = 28,303,449.88 × 7,931,046.94
  4. Step 4: Simplify right side
    18,861,647.42x = 224,475,989,562,217.38
  5. Step 5: Solve for x
    x = 224,475,989,562,217.38/18,861,647.42
  6. Step 6: Final answer
    x = 11,901,186.81

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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.