Home / 12,980,081.70-19,470,122.55-8,193,176.10

Finding the Fourth Proportional to 12,980,081.70, 19,470,122.55 and 8,193,176.10

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Solution

The fourth proportional to 12,980,081.70, 19,470,122.55 and 8,193,176.10 is: 12,289,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,980,081.70 : 19,470,122.55 = 8,193,176.10 : x
  2. Step 2: Convert to fraction form
    12,980,081.70/19,470,122.55 = 8,193,176.10/x
  3. Step 3: Cross multiply
    12,980,081.70x = 19,470,122.55 × 8,193,176.10
  4. Step 4: Simplify right side
    12,980,081.70x = 159,522,142,740,731.06
  5. Step 5: Solve for x
    x = 159,522,142,740,731.06/12,980,081.70
  6. Step 6: Final answer
    x = 12,289,764.15

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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.