Finding the Fourth Proportional to 96,793,975.20, 145,190,962.80 and 86,212,394.40
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Solution
The fourth proportional to 96,793,975.20, 145,190,962.80 and 86,212,394.40 is: 129,318,591.60
Step by Step Solution
- Step 1: Write the proportion equation
96,793,975.20 : 145,190,962.80 = 86,212,394.40 : x - Step 2: Convert to fraction form
96,793,975.20/145,190,962.80 = 86,212,394.40/x - Step 3: Cross multiply
96,793,975.20x = 145,190,962.80 × 86,212,394.40 - Step 4: Simplify right side
96,793,975.20x = 12,517,260,548,229,330 - Step 5: Solve for x
x = 12,517,260,548,229,330/96,793,975.20 - Step 6: Final answer
x = 129,318,591.60
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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.