Home / 19,178,919.14-28,768,628.03-6,399,423.86

Finding the Fourth Proportional to 19,178,919.14, 28,768,628.03 and 6,399,423.86

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Solution

The fourth proportional to 19,178,919.14, 28,768,628.03 and 6,399,423.86 is: 9,599,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178,919.14 : 28,768,628.03 = 6,399,423.86 : x
  2. Step 2: Convert to fraction form
    19,178,919.14/28,768,628.03 = 6,399,423.86/x
  3. Step 3: Cross multiply
    19,178,919.14x = 28,768,628.03 × 6,399,423.86
  4. Step 4: Simplify right side
    19,178,919.14x = 184,102,644,458,806.53
  5. Step 5: Solve for x
    x = 184,102,644,458,806.53/19,178,919.14
  6. Step 6: Final answer
    x = 9,599,218.97

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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.