Home / 28,321,765,661.03-39,083,837,786.21-15,461,405,618.36

Finding the Fourth Proportional to 28,321,765,661.03, 39,083,837,786.21 and 15,461,405,618.36

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Solution

The fourth proportional to 28,321,765,661.03, 39,083,837,786.21 and 15,461,405,618.36 is: 21,336,631,210.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,321,765,661.03 : 39,083,837,786.21 = 15,461,405,618.36 : x
  2. Step 2: Convert to fraction form
    28,321,765,661.03/39,083,837,786.21 = 15,461,405,618.36/x
  3. Step 3: Cross multiply
    28,321,765,661.03x = 39,083,837,786.21 × 15,461,405,618.36
  4. Step 4: Simplify right side
    28,321,765,661.03x = 604,291,069,134,629,109,760
  5. Step 5: Solve for x
    x = 604,291,069,134,629,109,760/28,321,765,661.03
  6. Step 6: Final answer
    x = 21,336,631,210.33

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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.