Home / 13,118,839.20-18,104,448.30-7,611,798.24

Finding the Fourth Proportional to 13,118,839.20, 18,104,448.30 and 7,611,798.24

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Solution

The fourth proportional to 13,118,839.20, 18,104,448.30 and 7,611,798.24 is: 10,504,542.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118,839.20 : 18,104,448.30 = 7,611,798.24 : x
  2. Step 2: Convert to fraction form
    13,118,839.20/18,104,448.30 = 7,611,798.24/x
  3. Step 3: Cross multiply
    13,118,839.20x = 18,104,448.30 × 7,611,798.24
  4. Step 4: Simplify right side
    13,118,839.20x = 137,807,407,706,111
  5. Step 5: Solve for x
    x = 137,807,407,706,111/13,118,839.20
  6. Step 6: Final answer
    x = 10,504,542.79

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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.