Finding the Fourth Proportional to 5,431,760.80, 8,135,831.40 and 3,298,123.60
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Solution
The fourth proportional to 5,431,760.80, 8,135,831.40 and 3,298,123.60 is: 4,940,014.58
Step by Step Solution
- Step 1: Write the proportion equation
5,431,760.80 : 8,135,831.40 = 3,298,123.60 : x - Step 2: Convert to fraction form
5,431,760.80/8,135,831.40 = 3,298,123.60/x - Step 3: Cross multiply
5,431,760.80x = 8,135,831.40 × 3,298,123.60 - Step 4: Simplify right side
5,431,760.80x = 26,832,977,545,961.04 - Step 5: Solve for x
x = 26,832,977,545,961.04/5,431,760.80 - Step 6: Final answer
x = 4,940,014.58
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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.