Finding the Fourth Proportional to 305,772,208.70, 429,290,415.70 and 305,772,208.70
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Solution
The fourth proportional to 305,772,208.70, 429,290,415.70 and 305,772,208.70 is: 429,290,415.70
Step by Step Solution
- Step 1: Write the proportion equation
305,772,208.70 : 429,290,415.70 = 305,772,208.70 : x - Step 2: Convert to fraction form
305,772,208.70/429,290,415.70 = 305,772,208.70/x - Step 3: Cross multiply
305,772,208.70x = 429,290,415.70 × 305,772,208.70 - Step 4: Simplify right side
305,772,208.70x = 131,265,078,582,330,144 - Step 5: Solve for x
x = 131,265,078,582,330,144/305,772,208.70 - Step 6: Final answer
x = 429,290,415.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.