Finding the Fourth Proportional to 7,706,751.76, 10,626,796.45 and 4,911,449.09
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Solution
The fourth proportional to 7,706,751.76, 10,626,796.45 and 4,911,449.09 is: 6,772,369.39
Step by Step Solution
- Step 1: Write the proportion equation
7,706,751.76 : 10,626,796.45 = 4,911,449.09 : x - Step 2: Convert to fraction form
7,706,751.76/10,626,796.45 = 4,911,449.09/x - Step 3: Cross multiply
7,706,751.76x = 10,626,796.45 × 4,911,449.09 - Step 4: Simplify right side
7,706,751.76x = 52,192,969,753,967.73 - Step 5: Solve for x
x = 52,192,969,753,967.73/7,706,751.76 - Step 6: Final answer
x = 6,772,369.39
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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.