Finding the Fourth Proportional to 90,458,199.93, 135,344,890.26 and 53,589,877.71
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Solution
The fourth proportional to 90,458,199.93, 135,344,890.26 and 53,589,877.71 is: 80,181,963.86
Step by Step Solution
- Step 1: Write the proportion equation
90,458,199.93 : 135,344,890.26 = 53,589,877.71 : x - Step 2: Convert to fraction form
90,458,199.93/135,344,890.26 = 53,589,877.71/x - Step 3: Cross multiply
90,458,199.93x = 135,344,890.26 × 53,589,877.71 - Step 4: Simplify right side
90,458,199.93x = 7,253,116,117,706,770 - Step 5: Solve for x
x = 7,253,116,117,706,770/90,458,199.93 - Step 6: Final answer
x = 80,181,963.86
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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.