Home / 892,296,007.20-1,338,444,010.80-479,047,485.60

Finding the Fourth Proportional to 892,296,007.20, 1,338,444,010.80 and 479,047,485.60

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Solution

The fourth proportional to 892,296,007.20, 1,338,444,010.80 and 479,047,485.60 is: 718,571,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,296,007.20 : 1,338,444,010.80 = 479,047,485.60 : x
  2. Step 2: Convert to fraction form
    892,296,007.20/1,338,444,010.80 = 479,047,485.60/x
  3. Step 3: Cross multiply
    892,296,007.20x = 1,338,444,010.80 × 479,047,485.60
  4. Step 4: Simplify right side
    892,296,007.20x = 641,178,237,990,119,296
  5. Step 5: Solve for x
    x = 641,178,237,990,119,296/892,296,007.20
  6. Step 6: Final answer
    x = 718,571,228.40

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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.