Home / 7,089,577.78-9,783,567.57-3,870,313.78

Finding the Fourth Proportional to 7,089,577.78, 9,783,567.57 and 3,870,313.78

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Solution

The fourth proportional to 7,089,577.78, 9,783,567.57 and 3,870,313.78 is: 5,341,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089,577.78 : 9,783,567.57 = 3,870,313.78 : x
  2. Step 2: Convert to fraction form
    7,089,577.78/9,783,567.57 = 3,870,313.78/x
  3. Step 3: Cross multiply
    7,089,577.78x = 9,783,567.57 × 3,870,313.78
  4. Step 4: Simplify right side
    7,089,577.78x = 37,865,476,383,732.12
  5. Step 5: Solve for x
    x = 37,865,476,383,732.12/7,089,577.78
  6. Step 6: Final answer
    x = 5,341,005.85

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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.