Home / 411,739,538.63-617,629,170.78-135,384,634.49

Finding the Fourth Proportional to 411,739,538.63, 617,629,170.78 and 135,384,634.49

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Solution

The fourth proportional to 411,739,538.63, 617,629,170.78 and 135,384,634.49 is: 203,083,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,739,538.63 : 617,629,170.78 = 135,384,634.49 : x
  2. Step 2: Convert to fraction form
    411,739,538.63/617,629,170.78 = 135,384,634.49/x
  3. Step 3: Cross multiply
    411,739,538.63x = 617,629,170.78 × 135,384,634.49
  4. Step 4: Simplify right side
    411,739,538.63x = 83,617,499,533,323,952
  5. Step 5: Solve for x
    x = 83,617,499,533,323,952/411,739,538.63
  6. Step 6: Final answer
    x = 203,083,482.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.