Home / 1,242,846,922.64-1,864,515,971.76-455,907,881.64

Finding the Fourth Proportional to 1,242,846,922.64, 1,864,515,971.76 and 455,907,881.64

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Solution

The fourth proportional to 1,242,846,922.64, 1,864,515,971.76 and 455,907,881.64 is: 683,951,910.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,846,922.64 : 1,864,515,971.76 = 455,907,881.64 : x
  2. Step 2: Convert to fraction form
    1,242,846,922.64/1,864,515,971.76 = 455,907,881.64/x
  3. Step 3: Cross multiply
    1,242,846,922.64x = 1,864,515,971.76 × 455,907,881.64
  4. Step 4: Simplify right side
    1,242,846,922.64x = 850,047,526,969,047,680
  5. Step 5: Solve for x
    x = 850,047,526,969,047,680/1,242,846,922.64
  6. Step 6: Final answer
    x = 683,951,910.32

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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.