Home / 858,449,014.70-1,287,768,000.45-276,084,157.10

Finding the Fourth Proportional to 858,449,014.70, 1,287,768,000.45 and 276,084,157.10

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Solution

The fourth proportional to 858,449,014.70, 1,287,768,000.45 and 276,084,157.10 is: 414,156,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,449,014.70 : 1,287,768,000.45 = 276,084,157.10 : x
  2. Step 2: Convert to fraction form
    858,449,014.70/1,287,768,000.45 = 276,084,157.10/x
  3. Step 3: Cross multiply
    858,449,014.70x = 1,287,768,000.45 × 276,084,157.10
  4. Step 4: Simplify right side
    858,449,014.70x = 355,532,342,944,590,720
  5. Step 5: Solve for x
    x = 355,532,342,944,590,720/858,449,014.70
  6. Step 6: Final answer
    x = 414,156,620.67

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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.