Home / 7,939,318.54-11,909,688.20-3,081,511.16

Finding the Fourth Proportional to 7,939,318.54, 11,909,688.20 and 3,081,511.16

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Solution

The fourth proportional to 7,939,318.54, 11,909,688.20 and 3,081,511.16 is: 4,622,542.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939,318.54 : 11,909,688.20 = 3,081,511.16 : x
  2. Step 2: Convert to fraction form
    7,939,318.54/11,909,688.20 = 3,081,511.16/x
  3. Step 3: Cross multiply
    7,939,318.54x = 11,909,688.20 × 3,081,511.16
  4. Step 4: Simplify right side
    7,939,318.54x = 36,699,837,100,420.31
  5. Step 5: Solve for x
    x = 36,699,837,100,420.31/7,939,318.54
  6. Step 6: Final answer
    x = 4,622,542.47

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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.