Home / 12,129,606.90-18,200,091.96-5,978,235.18

Finding the Fourth Proportional to 12,129,606.90, 18,200,091.96 and 5,978,235.18

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Solution

The fourth proportional to 12,129,606.90, 18,200,091.96 and 5,978,235.18 is: 8,970,153.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,606.90 : 18,200,091.96 = 5,978,235.18 : x
  2. Step 2: Convert to fraction form
    12,129,606.90/18,200,091.96 = 5,978,235.18/x
  3. Step 3: Cross multiply
    12,129,606.90x = 18,200,091.96 × 5,978,235.18
  4. Step 4: Simplify right side
    12,129,606.90x = 108,804,430,034,507.16
  5. Step 5: Solve for x
    x = 108,804,430,034,507.16/12,129,606.90
  6. Step 6: Final answer
    x = 8,970,153.03

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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.