Home / 309,819,589.20-464,729,383.80-262,043,845.20

Finding the Fourth Proportional to 309,819,589.20, 464,729,383.80 and 262,043,845.20

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Solution

The fourth proportional to 309,819,589.20, 464,729,383.80 and 262,043,845.20 is: 393,065,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,819,589.20 : 464,729,383.80 = 262,043,845.20 : x
  2. Step 2: Convert to fraction form
    309,819,589.20/464,729,383.80 = 262,043,845.20/x
  3. Step 3: Cross multiply
    309,819,589.20x = 464,729,383.80 × 262,043,845.20
  4. Step 4: Simplify right side
    309,819,589.20x = 121,779,474,708,378,592
  5. Step 5: Solve for x
    x = 121,779,474,708,378,592/309,819,589.20
  6. Step 6: Final answer
    x = 393,065,767.80

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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.