Home / 330,012,145.20-494,262,390.60-168,265,124.40

Finding the Fourth Proportional to 330,012,145.20, 494,262,390.60 and 168,265,124.40

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Solution

The fourth proportional to 330,012,145.20, 494,262,390.60 and 168,265,124.40 is: 252,012,308.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,012,145.20 : 494,262,390.60 = 168,265,124.40 : x
  2. Step 2: Convert to fraction form
    330,012,145.20/494,262,390.60 = 168,265,124.40/x
  3. Step 3: Cross multiply
    330,012,145.20x = 494,262,390.60 × 168,265,124.40
  4. Step 4: Simplify right side
    330,012,145.20x = 83,167,122,640,550,400
  5. Step 5: Solve for x
    x = 83,167,122,640,550,400/330,012,145.20
  6. Step 6: Final answer
    x = 252,012,308.79

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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.