Home / 638,396,784.37-880,987,164.44-345,041,352.37

Finding the Fourth Proportional to 638,396,784.37, 880,987,164.44 and 345,041,352.37

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Solution

The fourth proportional to 638,396,784.37, 880,987,164.44 and 345,041,352.37 is: 476,156,851.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,396,784.37 : 880,987,164.44 = 345,041,352.37 : x
  2. Step 2: Convert to fraction form
    638,396,784.37/880,987,164.44 = 345,041,352.37/x
  3. Step 3: Cross multiply
    638,396,784.37x = 880,987,164.44 × 345,041,352.37
  4. Step 4: Simplify right side
    638,396,784.37x = 303,977,002,638,989,184
  5. Step 5: Solve for x
    x = 303,977,002,638,989,184/638,396,784.37
  6. Step 6: Final answer
    x = 476,156,851.16

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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.