Finding the Fourth Proportional to 18,900,291.53, 28,350,278.84 and 5,253,397.86
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Solution
The fourth proportional to 18,900,291.53, 28,350,278.84 and 5,253,397.86 is: 7,880,052.75
Step by Step Solution
- Step 1: Write the proportion equation
18,900,291.53 : 28,350,278.84 = 5,253,397.86 : x - Step 2: Convert to fraction form
18,900,291.53/28,350,278.84 = 5,253,397.86/x - Step 3: Cross multiply
18,900,291.53x = 28,350,278.84 × 5,253,397.86 - Step 4: Simplify right side
18,900,291.53x = 148,935,294,307,906.31 - Step 5: Solve for x
x = 148,935,294,307,906.31/18,900,291.53 - Step 6: Final answer
x = 7,880,052.75
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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.