Finding the Fourth Proportional to 70,053,071.97, 104,988,451.05 and 28,505,518.97
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Solution
The fourth proportional to 70,053,071.97, 104,988,451.05 and 28,505,518.97 is: 42,721,185.50
Step by Step Solution
- Step 1: Write the proportion equation
70,053,071.97 : 104,988,451.05 = 28,505,518.97 : x - Step 2: Convert to fraction form
70,053,071.97/104,988,451.05 = 28,505,518.97/x - Step 3: Cross multiply
70,053,071.97x = 104,988,451.05 × 28,505,518.97 - Step 4: Simplify right side
70,053,071.97x = 2,992,750,282,511,749 - Step 5: Solve for x
x = 2,992,750,282,511,749/70,053,071.97 - Step 6: Final answer
x = 42,721,185.50
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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.