Home / 279,936,820.40-419,905,230.60-262,930,708.40

Finding the Fourth Proportional to 279,936,820.40, 419,905,230.60 and 262,930,708.40

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Solution

The fourth proportional to 279,936,820.40, 419,905,230.60 and 262,930,708.40 is: 394,396,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,820.40 : 419,905,230.60 = 262,930,708.40 : x
  2. Step 2: Convert to fraction form
    279,936,820.40/419,905,230.60 = 262,930,708.40/x
  3. Step 3: Cross multiply
    279,936,820.40x = 419,905,230.60 × 262,930,708.40
  4. Step 4: Simplify right side
    279,936,820.40x = 110,405,979,742,523,360
  5. Step 5: Solve for x
    x = 110,405,979,742,523,360/279,936,820.40
  6. Step 6: Final answer
    x = 394,396,062.60

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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.