Finding the Fourth Proportional to 18,181,219.98, 27,276,398.25 and 5,227,394.70
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Solution
The fourth proportional to 18,181,219.98, 27,276,398.25 and 5,227,394.70 is: 7,842,405.50
Step by Step Solution
- Step 1: Write the proportion equation
18,181,219.98 : 27,276,398.25 = 5,227,394.70 : x - Step 2: Convert to fraction form
18,181,219.98/27,276,398.25 = 5,227,394.70/x - Step 3: Cross multiply
18,181,219.98x = 27,276,398.25 × 5,227,394.70 - Step 4: Simplify right side
18,181,219.98x = 142,584,499,647,139.28 - Step 5: Solve for x
x = 142,584,499,647,139.28/18,181,219.98 - Step 6: Final answer
x = 7,842,405.50
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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.