Finding the Fourth Proportional to 80,028,207.80, 112,341,821.80 and 80,028,207.80
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Solution
The fourth proportional to 80,028,207.80, 112,341,821.80 and 80,028,207.80 is: 112,341,821.80
Step by Step Solution
- Step 1: Write the proportion equation
80,028,207.80 : 112,341,821.80 = 80,028,207.80 : x - Step 2: Convert to fraction form
80,028,207.80/112,341,821.80 = 80,028,207.80/x - Step 3: Cross multiply
80,028,207.80x = 112,341,821.80 × 80,028,207.80 - Step 4: Simplify right side
80,028,207.80x = 8,990,514,659,640,969 - Step 5: Solve for x
x = 8,990,514,659,640,969/80,028,207.80 - Step 6: Final answer
x = 112,341,821.80
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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.