Home / 13,640,435.96-18,820,991.63-7,838,096.69

Finding the Fourth Proportional to 13,640,435.96, 18,820,991.63 and 7,838,096.69

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Solution

The fourth proportional to 13,640,435.96, 18,820,991.63 and 7,838,096.69 is: 10,814,958.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640,435.96 : 18,820,991.63 = 7,838,096.69 : x
  2. Step 2: Convert to fraction form
    13,640,435.96/18,820,991.63 = 7,838,096.69/x
  3. Step 3: Cross multiply
    13,640,435.96x = 18,820,991.63 × 7,838,096.69
  4. Step 4: Simplify right side
    13,640,435.96x = 147,520,752,264,268.44
  5. Step 5: Solve for x
    x = 147,520,752,264,268.44/13,640,435.96
  6. Step 6: Final answer
    x = 10,814,958.75

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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.