Home / 366,519,884.64-505,654,322.76-209,803,240.32

Finding the Fourth Proportional to 366,519,884.64, 505,654,322.76 and 209,803,240.32

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Solution

The fourth proportional to 366,519,884.64, 505,654,322.76 and 209,803,240.32 is: 289,446,548.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,519,884.64 : 505,654,322.76 = 209,803,240.32 : x
  2. Step 2: Convert to fraction form
    366,519,884.64/505,654,322.76 = 209,803,240.32/x
  3. Step 3: Cross multiply
    366,519,884.64x = 505,654,322.76 × 209,803,240.32
  4. Step 4: Simplify right side
    366,519,884.64x = 106,087,915,396,863,120
  5. Step 5: Solve for x
    x = 106,087,915,396,863,120/366,519,884.64
  6. Step 6: Final answer
    x = 289,446,548.04

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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.