Finding the Fourth Proportional to 5,474,120.80, 8,210,403.60 and 1,687,986.40
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Solution
The fourth proportional to 5,474,120.80, 8,210,403.60 and 1,687,986.40 is: 2,531,739.82
Step by Step Solution
- Step 1: Write the proportion equation
5,474,120.80 : 8,210,403.60 = 1,687,986.40 : x - Step 2: Convert to fraction form
5,474,120.80/8,210,403.60 = 1,687,986.40/x - Step 3: Cross multiply
5,474,120.80x = 8,210,403.60 × 1,687,986.40 - Step 4: Simplify right side
5,474,120.80x = 13,859,049,615,311.04 - Step 5: Solve for x
x = 13,859,049,615,311.04/5,474,120.80 - Step 6: Final answer
x = 2,531,739.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.