Home / 426,347,316.56-639,425,317.08-196,095,187.28

Finding the Fourth Proportional to 426,347,316.56, 639,425,317.08 and 196,095,187.28

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Solution

The fourth proportional to 426,347,316.56, 639,425,317.08 and 196,095,187.28 is: 294,098,783.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,347,316.56 : 639,425,317.08 = 196,095,187.28 : x
  2. Step 2: Convert to fraction form
    426,347,316.56/639,425,317.08 = 196,095,187.28/x
  3. Step 3: Cross multiply
    426,347,316.56x = 639,425,317.08 × 196,095,187.28
  4. Step 4: Simplify right side
    426,347,316.56x = 125,388,227,304,375,984
  5. Step 5: Solve for x
    x = 125,388,227,304,375,984/426,347,316.56
  6. Step 6: Final answer
    x = 294,098,783.86

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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.