Finding the Fourth Proportional to 13,318,314.12, 19,979,991.09 and 4,222,702.62
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Solution
The fourth proportional to 13,318,314.12, 19,979,991.09 and 4,222,702.62 is: 6,334,852.89
Step by Step Solution
- Step 1: Write the proportion equation
13,318,314.12 : 19,979,991.09 = 4,222,702.62 : x - Step 2: Convert to fraction form
13,318,314.12/19,979,991.09 = 4,222,702.62/x - Step 3: Cross multiply
13,318,314.12x = 19,979,991.09 × 4,222,702.62 - Step 4: Simplify right side
13,318,314.12x = 84,369,560,723,319.66 - Step 5: Solve for x
x = 84,369,560,723,319.66/13,318,314.12 - Step 6: Final answer
x = 6,334,852.89
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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.