Home / 1,290,410,418,435.20-1,780,757,318,474.70-704,460,264,059.60

Finding the Fourth Proportional to 1,290,410,418,435.20, 1,780,757,318,474.70 and 704,460,264,059.60

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Solution

The fourth proportional to 1,290,410,418,435.20, 1,780,757,318,474.70 and 704,460,264,059.60 is: 972,150,218,935.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,410,418,435.20 : 1,780,757,318,474.70 = 704,460,264,059.60 : x
  2. Step 2: Convert to fraction form
    1,290,410,418,435.20/1,780,757,318,474.70 = 704,460,264,059.60/x
  3. Step 3: Cross multiply
    1,290,410,418,435.20x = 1,780,757,318,474.70 × 704,460,264,059.60
  4. Step 4: Simplify right side
    1,290,410,418,435.20x = 1,254,472,770,798,752,228,179,968
  5. Step 5: Solve for x
    x = 1,254,472,770,798,752,228,179,968/1,290,410,418,435.20
  6. Step 6: Final answer
    x = 972,150,218,935.75

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.