Finding the Fourth Proportional to 20,207,643.70, 30,321,703.95 and 8,848,203.70
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Solution
The fourth proportional to 20,207,643.70, 30,321,703.95 and 8,848,203.70 is: 13,276,788.58
Step by Step Solution
- Step 1: Write the proportion equation
20,207,643.70 : 30,321,703.95 = 8,848,203.70 : x - Step 2: Convert to fraction form
20,207,643.70/30,321,703.95 = 8,848,203.70/x - Step 3: Cross multiply
20,207,643.70x = 30,321,703.95 × 8,848,203.70 - Step 4: Simplify right side
20,207,643.70x = 268,292,613,080,694.59 - Step 5: Solve for x
x = 268,292,613,080,694.59/20,207,643.70 - Step 6: Final answer
x = 13,276,788.58
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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.