Finding the Fourth Proportional to 132,889,720.20, 199,334,580.30 and 131,098,129.80
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Solution
The fourth proportional to 132,889,720.20, 199,334,580.30 and 131,098,129.80 is: 196,647,194.70
Step by Step Solution
- Step 1: Write the proportion equation
132,889,720.20 : 199,334,580.30 = 131,098,129.80 : x - Step 2: Convert to fraction form
132,889,720.20/199,334,580.30 = 131,098,129.80/x - Step 3: Cross multiply
132,889,720.20x = 199,334,580.30 × 131,098,129.80 - Step 4: Simplify right side
132,889,720.20x = 26,132,390,681,797,924 - Step 5: Solve for x
x = 26,132,390,681,797,924/132,889,720.20 - Step 6: Final answer
x = 196,647,194.70
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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.