Home / 290,400,671.20-436,104,891.60-154,351,775.20

Finding the Fourth Proportional to 290,400,671.20, 436,104,891.60 and 154,351,775.20

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Solution

The fourth proportional to 290,400,671.20, 436,104,891.60 and 154,351,775.20 is: 231,795,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,400,671.20 : 436,104,891.60 = 154,351,775.20 : x
  2. Step 2: Convert to fraction form
    290,400,671.20/436,104,891.60 = 154,351,775.20/x
  3. Step 3: Cross multiply
    290,400,671.20x = 436,104,891.60 × 154,351,775.20
  4. Step 4: Simplify right side
    290,400,671.20x = 67,313,564,191,863,568
  5. Step 5: Solve for x
    x = 67,313,564,191,863,568/290,400,671.20
  6. Step 6: Final answer
    x = 231,795,484.20

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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.