Home / 406,135,239.06-609,260,703.38-126,040,353.51

Finding the Fourth Proportional to 406,135,239.06, 609,260,703.38 and 126,040,353.51

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Solution

The fourth proportional to 406,135,239.06, 609,260,703.38 and 126,040,353.51 is: 189,078,481.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,135,239.06 : 609,260,703.38 = 126,040,353.51 : x
  2. Step 2: Convert to fraction form
    406,135,239.06/609,260,703.38 = 126,040,353.51/x
  3. Step 3: Cross multiply
    406,135,239.06x = 609,260,703.38 × 126,040,353.51
  4. Step 4: Simplify right side
    406,135,239.06x = 76,791,434,435,893,632
  5. Step 5: Solve for x
    x = 76,791,434,435,893,632/406,135,239.06
  6. Step 6: Final answer
    x = 189,078,481.87

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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.