Home / 18,608,384.25-27,912,582.50-7,678,414.35

Finding the Fourth Proportional to 18,608,384.25, 27,912,582.50 and 7,678,414.35

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Solution

The fourth proportional to 18,608,384.25, 27,912,582.50 and 7,678,414.35 is: 11,517,624.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608,384.25 : 27,912,582.50 = 7,678,414.35 : x
  2. Step 2: Convert to fraction form
    18,608,384.25/27,912,582.50 = 7,678,414.35/x
  3. Step 3: Cross multiply
    18,608,384.25x = 27,912,582.50 × 7,678,414.35
  4. Step 4: Simplify right side
    18,608,384.25x = 214,324,373,975,166.81
  5. Step 5: Solve for x
    x = 214,324,373,975,166.81/18,608,384.25
  6. Step 6: Final answer
    x = 11,517,624.05

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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.