Home / 13,638,039.24-18,820,933.56-7,757,521.32

Finding the Fourth Proportional to 13,638,039.24, 18,820,933.56 and 7,757,521.32

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Solution

The fourth proportional to 13,638,039.24, 18,820,933.56 and 7,757,521.32 is: 10,705,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,638,039.24 : 18,820,933.56 = 7,757,521.32 : x
  2. Step 2: Convert to fraction form
    13,638,039.24/18,820,933.56 = 7,757,521.32/x
  3. Step 3: Cross multiply
    13,638,039.24x = 18,820,933.56 × 7,757,521.32
  4. Step 4: Simplify right side
    13,638,039.24x = 146,003,793,354,003.50
  5. Step 5: Solve for x
    x = 146,003,793,354,003.50/13,638,039.24
  6. Step 6: Final answer
    x = 10,705,629.36

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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.