Finding the Fourth Proportional to 7,636,958.80, 11,458,610.56 and 3,091,220.98
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Solution
The fourth proportional to 7,636,958.80, 11,458,610.56 and 3,091,220.98 is: 4,638,115.55
Step by Step Solution
- Step 1: Write the proportion equation
7,636,958.80 : 11,458,610.56 = 3,091,220.98 : x - Step 2: Convert to fraction form
7,636,958.80/11,458,610.56 = 3,091,220.98/x - Step 3: Cross multiply
7,636,958.80x = 11,458,610.56 × 3,091,220.98 - Step 4: Simplify right side
7,636,958.80x = 35,421,097,364,721.55 - Step 5: Solve for x
x = 35,421,097,364,721.55/7,636,958.80 - Step 6: Final answer
x = 4,638,115.55
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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.