Home / 12,779,213.72-17,635,400.34-6,978,035.96

Finding the Fourth Proportional to 12,779,213.72, 17,635,400.34 and 6,978,035.96

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Solution

The fourth proportional to 12,779,213.72, 17,635,400.34 and 6,978,035.96 is: 9,629,736.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779,213.72 : 17,635,400.34 = 6,978,035.96 : x
  2. Step 2: Convert to fraction form
    12,779,213.72/17,635,400.34 = 6,978,035.96/x
  3. Step 3: Cross multiply
    12,779,213.72x = 17,635,400.34 × 6,978,035.96
  4. Step 4: Simplify right side
    12,779,213.72x = 123,060,457,741,516.22
  5. Step 5: Solve for x
    x = 123,060,457,741,516.22/12,779,213.72
  6. Step 6: Final answer
    x = 9,629,736.26

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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.