Home / 440,843,902.20-660,510,026.10-287,410,980.60

Finding the Fourth Proportional to 440,843,902.20, 660,510,026.10 and 287,410,980.60

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Solution

The fourth proportional to 440,843,902.20, 660,510,026.10 and 287,410,980.60 is: 430,623,704.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,843,902.20 : 660,510,026.10 = 287,410,980.60 : x
  2. Step 2: Convert to fraction form
    440,843,902.20/660,510,026.10 = 287,410,980.60/x
  3. Step 3: Cross multiply
    440,843,902.20x = 660,510,026.10 × 287,410,980.60
  4. Step 4: Simplify right side
    440,843,902.20x = 189,837,834,297,532,608
  5. Step 5: Solve for x
    x = 189,837,834,297,532,608/440,843,902.20
  6. Step 6: Final answer
    x = 430,623,704.56

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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.