Finding the Fourth Proportional to 5,214,266.64, 7,821,990.45 and 4,678,495.38
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Solution
The fourth proportional to 5,214,266.64, 7,821,990.45 and 4,678,495.38 is: 7,018,272.89
Step by Step Solution
- Step 1: Write the proportion equation
5,214,266.64 : 7,821,990.45 = 4,678,495.38 : x - Step 2: Convert to fraction form
5,214,266.64/7,821,990.45 = 4,678,495.38/x - Step 3: Cross multiply
5,214,266.64x = 7,821,990.45 × 4,678,495.38 - Step 4: Simplify right side
5,214,266.64x = 36,595,146,182,729.12 - Step 5: Solve for x
x = 36,595,146,182,729.12/5,214,266.64 - Step 6: Final answer
x = 7,018,272.89
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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.