Home / 210,200,035.40-290,212,541-188,135,324.36

Finding the Fourth Proportional to 210,200,035.40, 290,212,541 and 188,135,324.36

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Solution

The fourth proportional to 210,200,035.40, 290,212,541 and 188,135,324.36 is: 259,748,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,200,035.40 : 290,212,541 = 188,135,324.36 : x
  2. Step 2: Convert to fraction form
    210,200,035.40/290,212,541 = 188,135,324.36/x
  3. Step 3: Cross multiply
    210,200,035.40x = 290,212,541 × 188,135,324.36
  4. Step 4: Simplify right side
    210,200,035.40x = 54,599,230,534,374,800
  5. Step 5: Solve for x
    x = 54,599,230,534,374,800/210,200,035.40
  6. Step 6: Final answer
    x = 259,748,912.18

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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.