Home / 743,171,388.21-1,025,580,219.39-408,665,483.28

Finding the Fourth Proportional to 743,171,388.21, 1,025,580,219.39 and 408,665,483.28

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Solution

The fourth proportional to 743,171,388.21, 1,025,580,219.39 and 408,665,483.28 is: 563,960,403.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,171,388.21 : 1,025,580,219.39 = 408,665,483.28 : x
  2. Step 2: Convert to fraction form
    743,171,388.21/1,025,580,219.39 = 408,665,483.28/x
  3. Step 3: Cross multiply
    743,171,388.21x = 1,025,580,219.39 × 408,665,483.28
  4. Step 4: Simplify right side
    743,171,388.21x = 419,119,235,999,422,720
  5. Step 5: Solve for x
    x = 419,119,235,999,422,720/743,171,388.21
  6. Step 6: Final answer
    x = 563,960,403.55

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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.