Finding the Fourth Proportional to 80,751,983.20, 121,127,974.80 and 46,739,759.20
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Solution
The fourth proportional to 80,751,983.20, 121,127,974.80 and 46,739,759.20 is: 70,109,638.80
Step by Step Solution
- Step 1: Write the proportion equation
80,751,983.20 : 121,127,974.80 = 46,739,759.20 : x - Step 2: Convert to fraction form
80,751,983.20/121,127,974.80 = 46,739,759.20/x - Step 3: Cross multiply
80,751,983.20x = 121,127,974.80 × 46,739,759.20 - Step 4: Simplify right side
80,751,983.20x = 5,661,492,374,535,668 - Step 5: Solve for x
x = 5,661,492,374,535,668/80,751,983.20 - Step 6: Final answer
x = 70,109,638.80
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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.