Home / 259,004,906.80-388,498,374.60-64,918,020.40

Finding the Fourth Proportional to 259,004,906.80, 388,498,374.60 and 64,918,020.40

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Solution

The fourth proportional to 259,004,906.80, 388,498,374.60 and 64,918,020.40 is: 97,374,778.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,004,906.80 : 388,498,374.60 = 64,918,020.40 : x
  2. Step 2: Convert to fraction form
    259,004,906.80/388,498,374.60 = 64,918,020.40/x
  3. Step 3: Cross multiply
    259,004,906.80x = 388,498,374.60 × 64,918,020.40
  4. Step 4: Simplify right side
    259,004,906.80x = 25,220,545,407,649,644
  5. Step 5: Solve for x
    x = 25,220,545,407,649,644/259,004,906.80
  6. Step 6: Final answer
    x = 97,374,778.41

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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.