Home / 1,621,047,255.30-2,237,047,125.42-878,491,318.05

Finding the Fourth Proportional to 1,621,047,255.30, 2,237,047,125.42 and 878,491,318.05

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Solution

The fourth proportional to 1,621,047,255.30, 2,237,047,125.42 and 878,491,318.05 is: 1,212,319,055.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,047,255.30 : 2,237,047,125.42 = 878,491,318.05 : x
  2. Step 2: Convert to fraction form
    1,621,047,255.30/2,237,047,125.42 = 878,491,318.05/x
  3. Step 3: Cross multiply
    1,621,047,255.30x = 2,237,047,125.42 × 878,491,318.05
  4. Step 4: Simplify right side
    1,621,047,255.30x = 1,965,226,477,750,179,328
  5. Step 5: Solve for x
    x = 1,965,226,477,750,179,328/1,621,047,255.30
  6. Step 6: Final answer
    x = 1,212,319,055.68

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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.