Finding the Fourth Proportional to 5,479,837.60, 8,220,274.80 and 1,490,749.60
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Solution
The fourth proportional to 5,479,837.60, 8,220,274.80 and 1,490,749.60 is: 2,236,265.43
Step by Step Solution
- Step 1: Write the proportion equation
5,479,837.60 : 8,220,274.80 = 1,490,749.60 : x - Step 2: Convert to fraction form
5,479,837.60/8,220,274.80 = 1,490,749.60/x - Step 3: Cross multiply
5,479,837.60x = 8,220,274.80 × 1,490,749.60 - Step 4: Simplify right side
5,479,837.60x = 12,254,371,369,990.08 - Step 5: Solve for x
x = 12,254,371,369,990.08/5,479,837.60 - Step 6: Final answer
x = 2,236,265.43
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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.