Finding the Fourth Proportional to 78,209,265.36, 107,917,768.84 and 46,839,962.64
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Solution
The fourth proportional to 78,209,265.36, 107,917,768.84 and 46,839,962.64 is: 64,632,550.09
Step by Step Solution
- Step 1: Write the proportion equation
78,209,265.36 : 107,917,768.84 = 46,839,962.64 : x - Step 2: Convert to fraction form
78,209,265.36/107,917,768.84 = 46,839,962.64/x - Step 3: Cross multiply
78,209,265.36x = 107,917,768.84 × 46,839,962.64 - Step 4: Simplify right side
78,209,265.36x = 5,054,864,260,657,756 - Step 5: Solve for x
x = 5,054,864,260,657,756/78,209,265.36 - Step 6: Final answer
x = 64,632,550.09
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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.