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Finding the Fourth Proportional to 415,564,978.80, 622,936,312.20 and 196,830,861.60

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Solution

The fourth proportional to 415,564,978.80, 622,936,312.20 and 196,830,861.60 is: 295,051,549.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,564,978.80 : 622,936,312.20 = 196,830,861.60 : x
  2. Step 2: Convert to fraction form
    415,564,978.80/622,936,312.20 = 196,830,861.60/x
  3. Step 3: Cross multiply
    415,564,978.80x = 622,936,312.20 × 196,830,861.60
  4. Step 4: Simplify right side
    415,564,978.80x = 122,613,091,052,252,592
  5. Step 5: Solve for x
    x = 122,613,091,052,252,592/415,564,978.80
  6. Step 6: Final answer
    x = 295,051,549.84

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Why These Related Problems?

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