Finding the Fourth Proportional to 20,157,652.44, 27,816,759.18 and 11,900,374.74
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Solution
The fourth proportional to 20,157,652.44, 27,816,759.18 and 11,900,374.74 is: 16,422,044.15
Step by Step Solution
- Step 1: Write the proportion equation
20,157,652.44 : 27,816,759.18 = 11,900,374.74 : x - Step 2: Convert to fraction form
20,157,652.44/27,816,759.18 = 11,900,374.74/x - Step 3: Cross multiply
20,157,652.44x = 27,816,759.18 × 11,900,374.74 - Step 4: Simplify right side
20,157,652.44x = 331,029,858,294,335.12 - Step 5: Solve for x
x = 331,029,858,294,335.12/20,157,652.44 - Step 6: Final answer
x = 16,422,044.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.