Finding the Fourth Proportional to 78,804,967.80, 118,207,451.71 and 48,571,879.80
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Solution
The fourth proportional to 78,804,967.80, 118,207,451.71 and 48,571,879.80 is: 72,857,819.71
Step by Step Solution
- Step 1: Write the proportion equation
78,804,967.80 : 118,207,451.71 = 48,571,879.80 : x - Step 2: Convert to fraction form
78,804,967.80/118,207,451.71 = 48,571,879.80/x - Step 3: Cross multiply
78,804,967.80x = 118,207,451.71 × 48,571,879.80 - Step 4: Simplify right side
78,804,967.80x = 5,741,558,135,922,424 - Step 5: Solve for x
x = 5,741,558,135,922,424/78,804,967.80 - Step 6: Final answer
x = 72,857,819.71
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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.