Finding the Fourth Proportional to 135,590,613.80, 203,385,920.70 and 71,889,621.80
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Solution
The fourth proportional to 135,590,613.80, 203,385,920.70 and 71,889,621.80 is: 107,834,432.70
Step by Step Solution
- Step 1: Write the proportion equation
135,590,613.80 : 203,385,920.70 = 71,889,621.80 : x - Step 2: Convert to fraction form
135,590,613.80/203,385,920.70 = 71,889,621.80/x - Step 3: Cross multiply
135,590,613.80x = 203,385,920.70 × 71,889,621.80 - Step 4: Simplify right side
135,590,613.80x = 14,621,336,918,567,790 - Step 5: Solve for x
x = 14,621,336,918,567,790/135,590,613.80 - Step 6: Final answer
x = 107,834,432.70
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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.