Finding the Fourth Proportional to 18,379,130.84, 27,571,690.92 and 5,426,590.82
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Solution
The fourth proportional to 18,379,130.84, 27,571,690.92 and 5,426,590.82 is: 8,140,770.43
Step by Step Solution
- Step 1: Write the proportion equation
18,379,130.84 : 27,571,690.92 = 5,426,590.82 : x - Step 2: Convert to fraction form
18,379,130.84/27,571,690.92 = 5,426,590.82/x - Step 3: Cross multiply
18,379,130.84x = 27,571,690.92 × 5,426,590.82 - Step 4: Simplify right side
18,379,130.84x = 149,620,284,838,349.38 - Step 5: Solve for x
x = 149,620,284,838,349.38/18,379,130.84 - Step 6: Final answer
x = 8,140,770.43
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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.