Home / 7,980,129.51-11,971,876.41-2,588,360.46

Finding the Fourth Proportional to 7,980,129.51, 11,971,876.41 and 2,588,360.46

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Solution

The fourth proportional to 7,980,129.51, 11,971,876.41 and 2,588,360.46 is: 3,883,086.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980,129.51 : 11,971,876.41 = 2,588,360.46 : x
  2. Step 2: Convert to fraction form
    7,980,129.51/11,971,876.41 = 2,588,360.46/x
  3. Step 3: Cross multiply
    7,980,129.51x = 11,971,876.41 × 2,588,360.46
  4. Step 4: Simplify right side
    7,980,129.51x = 30,987,531,531,650.75
  5. Step 5: Solve for x
    x = 30,987,531,531,650.75/7,980,129.51
  6. Step 6: Final answer
    x = 3,883,086.29

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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.