Home / 236,197,331.70-354,295,997.55-218,978,643.30

Finding the Fourth Proportional to 236,197,331.70, 354,295,997.55 and 218,978,643.30

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Solution

The fourth proportional to 236,197,331.70, 354,295,997.55 and 218,978,643.30 is: 328,467,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,197,331.70 : 354,295,997.55 = 218,978,643.30 : x
  2. Step 2: Convert to fraction form
    236,197,331.70/354,295,997.55 = 218,978,643.30/x
  3. Step 3: Cross multiply
    236,197,331.70x = 354,295,997.55 × 218,978,643.30
  4. Step 4: Simplify right side
    236,197,331.70x = 77,583,256,870,119,136
  5. Step 5: Solve for x
    x = 77,583,256,870,119,136/236,197,331.70
  6. Step 6: Final answer
    x = 328,467,964.95

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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.