Home / 507,220,404,769.44-699,964,608,859.92-278,853,532,129.44

Finding the Fourth Proportional to 507,220,404,769.44, 699,964,608,859.92 and 278,853,532,129.44

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Solution

The fourth proportional to 507,220,404,769.44, 699,964,608,859.92 and 278,853,532,129.44 is: 384,818,121,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,220,404,769.44 : 699,964,608,859.92 = 278,853,532,129.44 : x
  2. Step 2: Convert to fraction form
    507,220,404,769.44/699,964,608,859.92 = 278,853,532,129.44/x
  3. Step 3: Cross multiply
    507,220,404,769.44x = 699,964,608,859.92 × 278,853,532,129.44
  4. Step 4: Simplify right side
    507,220,404,769.44x = 195,187,603,546,190,630,617,088
  5. Step 5: Solve for x
    x = 195,187,603,546,190,630,617,088/507,220,404,769.44
  6. Step 6: Final answer
    x = 384,818,121,887.10

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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.