Finding the Fourth Proportional to 79,115,736.30, 118,673,604.45 and 53,287,703.70
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Solution
The fourth proportional to 79,115,736.30, 118,673,604.45 and 53,287,703.70 is: 79,931,555.55
Step by Step Solution
- Step 1: Write the proportion equation
79,115,736.30 : 118,673,604.45 = 53,287,703.70 : x - Step 2: Convert to fraction form
79,115,736.30/118,673,604.45 = 53,287,703.70/x - Step 3: Cross multiply
79,115,736.30x = 118,673,604.45 × 53,287,703.70 - Step 4: Simplify right side
79,115,736.30x = 6,323,843,870,942,602 - Step 5: Solve for x
x = 6,323,843,870,942,602/79,115,736.30 - Step 6: Final answer
x = 79,931,555.55
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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.