Finding the Fourth Proportional to 9,345,779.43, 12,897,343.58 and 5,481,087.99
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Solution
The fourth proportional to 9,345,779.43, 12,897,343.58 and 5,481,087.99 is: 7,563,999.93
Step by Step Solution
- Step 1: Write the proportion equation
9,345,779.43 : 12,897,343.58 = 5,481,087.99 : x - Step 2: Convert to fraction form
9,345,779.43/12,897,343.58 = 5,481,087.99/x - Step 3: Cross multiply
9,345,779.43x = 12,897,343.58 × 5,481,087.99 - Step 4: Simplify right side
9,345,779.43x = 70,691,474,971,836.16 - Step 5: Solve for x
x = 70,691,474,971,836.16/9,345,779.43 - Step 6: Final answer
x = 7,563,999.93
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.