Finding the Fourth Proportional to 18,123,223.14, 27,183,948.90 and 6,762,786
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Solution
The fourth proportional to 18,123,223.14, 27,183,948.90 and 6,762,786 is: 10,143,848.45
Step by Step Solution
- Step 1: Write the proportion equation
18,123,223.14 : 27,183,948.90 = 6,762,786 : x - Step 2: Convert to fraction form
18,123,223.14/27,183,948.90 = 6,762,786/x - Step 3: Cross multiply
18,123,223.14x = 27,183,948.90 × 6,762,786 - Step 4: Simplify right side
18,123,223.14x = 183,839,229,045,635.38 - Step 5: Solve for x
x = 183,839,229,045,635.38/18,123,223.14 - Step 6: Final answer
x = 10,143,848.45
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1.5x scale
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.