Home / 13,618,534.45-18,792,638.31-7,658,832.37

Finding the Fourth Proportional to 13,618,534.45, 18,792,638.31 and 7,658,832.37

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Solution

The fourth proportional to 13,618,534.45, 18,792,638.31 and 7,658,832.37 is: 10,568,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618,534.45 : 18,792,638.31 = 7,658,832.37 : x
  2. Step 2: Convert to fraction form
    13,618,534.45/18,792,638.31 = 7,658,832.37/x
  3. Step 3: Cross multiply
    13,618,534.45x = 18,792,638.31 × 7,658,832.37
  4. Step 4: Simplify right side
    13,618,534.45x = 143,929,666,606,330.09
  5. Step 5: Solve for x
    x = 143,929,666,606,330.09/13,618,534.45
  6. Step 6: Final answer
    x = 10,568,660.46

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1.5x scale

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.