Home / 638,396,783.37-880,987,163.06-345,041,351.37

Finding the Fourth Proportional to 638,396,783.37, 880,987,163.06 and 345,041,351.37

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Solution

The fourth proportional to 638,396,783.37, 880,987,163.06 and 345,041,351.37 is: 476,156,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,396,783.37 : 880,987,163.06 = 345,041,351.37 : x
  2. Step 2: Convert to fraction form
    638,396,783.37/880,987,163.06 = 345,041,351.37/x
  3. Step 3: Cross multiply
    638,396,783.37x = 880,987,163.06 × 345,041,351.37
  4. Step 4: Simplify right side
    638,396,783.37x = 303,977,001,282,700,672
  5. Step 5: Solve for x
    x = 303,977,001,282,700,672/638,396,783.37
  6. Step 6: Final answer
    x = 476,156,849.79

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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.