Home / 406,921,987.20-610,420,305.60-134,293,353.60

Finding the Fourth Proportional to 406,921,987.20, 610,420,305.60 and 134,293,353.60

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Solution

The fourth proportional to 406,921,987.20, 610,420,305.60 and 134,293,353.60 is: 201,452,348.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,921,987.20 : 610,420,305.60 = 134,293,353.60 : x
  2. Step 2: Convert to fraction form
    406,921,987.20/610,420,305.60 = 134,293,353.60/x
  3. Step 3: Cross multiply
    406,921,987.20x = 610,420,305.60 × 134,293,353.60
  4. Step 4: Simplify right side
    406,921,987.20x = 81,975,389,944,560,864
  5. Step 5: Solve for x
    x = 81,975,389,944,560,864/406,921,987.20
  6. Step 6: Final answer
    x = 201,452,348.42

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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.