Finding the Fourth Proportional to 49,691,723.60, 74,537,585.40 and 13,305,729.80
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Solution
The fourth proportional to 49,691,723.60, 74,537,585.40 and 13,305,729.80 is: 19,958,594.70
Step by Step Solution
- Step 1: Write the proportion equation
49,691,723.60 : 74,537,585.40 = 13,305,729.80 : x - Step 2: Convert to fraction form
49,691,723.60/74,537,585.40 = 13,305,729.80/x - Step 3: Cross multiply
49,691,723.60x = 74,537,585.40 × 13,305,729.80 - Step 4: Simplify right side
49,691,723.60x = 991,776,971,276,825 - Step 5: Solve for x
x = 991,776,971,276,825/49,691,723.60 - Step 6: Final answer
x = 19,958,594.70
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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.