Home / 1,621,047,391.83-2,237,047,313.27-878,491,454.58

Finding the Fourth Proportional to 1,621,047,391.83, 2,237,047,313.27 and 878,491,454.58

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Solution

The fourth proportional to 1,621,047,391.83, 2,237,047,313.27 and 878,491,454.58 is: 1,212,319,243.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,047,391.83 : 2,237,047,313.27 = 878,491,454.58 : x
  2. Step 2: Convert to fraction form
    1,621,047,391.83/2,237,047,313.27 = 878,491,454.58/x
  3. Step 3: Cross multiply
    1,621,047,391.83x = 2,237,047,313.27 × 878,491,454.58
  4. Step 4: Simplify right side
    1,621,047,391.83x = 1,965,226,948,194,450,688
  5. Step 5: Solve for x
    x = 1,965,226,948,194,450,688/1,621,047,391.83
  6. Step 6: Final answer
    x = 1,212,319,243.78

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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.