Home / 1,621,047,264.38-2,237,047,137.46-878,491,327.13

Finding the Fourth Proportional to 1,621,047,264.38, 2,237,047,137.46 and 878,491,327.13

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Solution

The fourth proportional to 1,621,047,264.38, 2,237,047,137.46 and 878,491,327.13 is: 1,212,319,067.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,047,264.38 : 2,237,047,137.46 = 878,491,327.13 : x
  2. Step 2: Convert to fraction form
    1,621,047,264.38/2,237,047,137.46 = 878,491,327.13/x
  3. Step 3: Cross multiply
    1,621,047,264.38x = 2,237,047,137.46 × 878,491,327.13
  4. Step 4: Simplify right side
    1,621,047,264.38x = 1,965,226,508,639,602,944
  5. Step 5: Solve for x
    x = 1,965,226,508,639,602,944/1,621,047,264.38
  6. Step 6: Final answer
    x = 1,212,319,067.94

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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.