Home / 828,019,311.60-1,240,973,958.60-440,028,015.60

Finding the Fourth Proportional to 828,019,311.60, 1,240,973,958.60 and 440,028,015.60

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Solution

The fourth proportional to 828,019,311.60, 1,240,973,958.60 and 440,028,015.60 is: 659,481,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,019,311.60 : 1,240,973,958.60 = 440,028,015.60 : x
  2. Step 2: Convert to fraction form
    828,019,311.60/1,240,973,958.60 = 440,028,015.60/x
  3. Step 3: Cross multiply
    828,019,311.60x = 1,240,973,958.60 × 440,028,015.60
  4. Step 4: Simplify right side
    828,019,311.60x = 546,063,308,414,034,560
  5. Step 5: Solve for x
    x = 546,063,308,414,034,560/828,019,311.60
  6. Step 6: Final answer
    x = 659,481,368.08

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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.