Home / 336,809,378.90-505,214,068.35-311,615,138.90

Finding the Fourth Proportional to 336,809,378.90, 505,214,068.35 and 311,615,138.90

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Solution

The fourth proportional to 336,809,378.90, 505,214,068.35 and 311,615,138.90 is: 467,422,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,809,378.90 : 505,214,068.35 = 311,615,138.90 : x
  2. Step 2: Convert to fraction form
    336,809,378.90/505,214,068.35 = 311,615,138.90/x
  3. Step 3: Cross multiply
    336,809,378.90x = 505,214,068.35 × 311,615,138.90
  4. Step 4: Simplify right side
    336,809,378.90x = 157,432,352,083,119,328
  5. Step 5: Solve for x
    x = 157,432,352,083,119,328/336,809,378.90
  6. Step 6: Final answer
    x = 467,422,708.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.