Finding the Fourth Proportional to 25,923,544.56, 38,890,921.80 and 13,791,244.68
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Solution
The fourth proportional to 25,923,544.56, 38,890,921.80 and 13,791,244.68 is: 20,689,848.84
Step by Step Solution
- Step 1: Write the proportion equation
25,923,544.56 : 38,890,921.80 = 13,791,244.68 : x - Step 2: Convert to fraction form
25,923,544.56/38,890,921.80 = 13,791,244.68/x - Step 3: Cross multiply
25,923,544.56x = 38,890,921.80 × 13,791,244.68 - Step 4: Simplify right side
25,923,544.56x = 536,354,218,374,546 - Step 5: Solve for x
x = 536,354,218,374,546/25,923,544.56 - Step 6: Final answer
x = 20,689,848.84
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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.