Home / 1,621,047,222.68-2,237,047,080.39-878,491,285.43

Finding the Fourth Proportional to 1,621,047,222.68, 2,237,047,080.39 and 878,491,285.43

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Solution

The fourth proportional to 1,621,047,222.68, 2,237,047,080.39 and 878,491,285.43 is: 1,212,319,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,047,222.68 : 2,237,047,080.39 = 878,491,285.43 : x
  2. Step 2: Convert to fraction form
    1,621,047,222.68/2,237,047,080.39 = 878,491,285.43/x
  3. Step 3: Cross multiply
    1,621,047,222.68x = 2,237,047,080.39 × 878,491,285.43
  4. Step 4: Simplify right side
    1,621,047,222.68x = 1,965,226,365,208,054,272
  5. Step 5: Solve for x
    x = 1,965,226,365,208,054,272/1,621,047,222.68
  6. Step 6: Final answer
    x = 1,212,319,010.65

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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.