Home / 1,231,589,090-1,699,579,404.36-667,059,928.16

Finding the Fourth Proportional to 1,231,589,090, 1,699,579,404.36 and 667,059,928.16

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Solution

The fourth proportional to 1,231,589,090, 1,699,579,404.36 and 667,059,928.16 is: 920,535,367.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,589,090 : 1,699,579,404.36 = 667,059,928.16 : x
  2. Step 2: Convert to fraction form
    1,231,589,090/1,699,579,404.36 = 667,059,928.16/x
  3. Step 3: Cross multiply
    1,231,589,090x = 1,699,579,404.36 × 667,059,928.16
  4. Step 4: Simplify right side
    1,231,589,090x = 1,133,721,315,374,597,120
  5. Step 5: Solve for x
    x = 1,133,721,315,374,597,120/1,231,589,090
  6. Step 6: Final answer
    x = 920,535,367.34

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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.