Home / 7,089,575.78-9,783,564.81-3,870,311.78

Finding the Fourth Proportional to 7,089,575.78, 9,783,564.81 and 3,870,311.78

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Solution

The fourth proportional to 7,089,575.78, 9,783,564.81 and 3,870,311.78 is: 5,341,003.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089,575.78 : 9,783,564.81 = 3,870,311.78 : x
  2. Step 2: Convert to fraction form
    7,089,575.78/9,783,564.81 = 3,870,311.78/x
  3. Step 3: Cross multiply
    7,089,575.78x = 9,783,564.81 × 3,870,311.78
  4. Step 4: Simplify right side
    7,089,575.78x = 37,865,446,134,536.46
  5. Step 5: Solve for x
    x = 37,865,446,134,536.46/7,089,575.78
  6. Step 6: Final answer
    x = 5,341,003.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.