Finding the Fourth Proportional to 98,118,538.96, 135,397,481.84 and 54,063,072.40
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Solution
The fourth proportional to 98,118,538.96, 135,397,481.84 and 54,063,072.40 is: 74,603,677.76
Step by Step Solution
- Step 1: Write the proportion equation
98,118,538.96 : 135,397,481.84 = 54,063,072.40 : x - Step 2: Convert to fraction form
98,118,538.96/135,397,481.84 = 54,063,072.40/x - Step 3: Cross multiply
98,118,538.96x = 135,397,481.84 × 54,063,072.40 - Step 4: Simplify right side
98,118,538.96x = 7,320,003,863,223,290 - Step 5: Solve for x
x = 7,320,003,863,223,290/98,118,538.96 - Step 6: Final answer
x = 74,603,677.76
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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.