Home / 352,415,998.40-528,623,997.60-214,666,491.20

Finding the Fourth Proportional to 352,415,998.40, 528,623,997.60 and 214,666,491.20

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Solution

The fourth proportional to 352,415,998.40, 528,623,997.60 and 214,666,491.20 is: 321,999,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,415,998.40 : 528,623,997.60 = 214,666,491.20 : x
  2. Step 2: Convert to fraction form
    352,415,998.40/528,623,997.60 = 214,666,491.20/x
  3. Step 3: Cross multiply
    352,415,998.40x = 528,623,997.60 × 214,666,491.20
  4. Step 4: Simplify right side
    352,415,998.40x = 113,477,858,728,909,216
  5. Step 5: Solve for x
    x = 113,477,858,728,909,216/352,415,998.40
  6. Step 6: Final answer
    x = 321,999,736.80

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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.