Home / 19,178,920.14-28,768,629.53-6,399,424.86

Finding the Fourth Proportional to 19,178,920.14, 28,768,629.53 and 6,399,424.86

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Solution

The fourth proportional to 19,178,920.14, 28,768,629.53 and 6,399,424.86 is: 9,599,220.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178,920.14 : 28,768,629.53 = 6,399,424.86 : x
  2. Step 2: Convert to fraction form
    19,178,920.14/28,768,629.53 = 6,399,424.86/x
  3. Step 3: Cross multiply
    19,178,920.14x = 28,768,629.53 × 6,399,424.86
  4. Step 4: Simplify right side
    19,178,920.14x = 184,102,683,002,412.12
  5. Step 5: Solve for x
    x = 184,102,683,002,412.12/19,178,920.14
  6. Step 6: Final answer
    x = 9,599,220.48

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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.