Finding the Fourth Proportional to 398,972,403.80, 597,324,864.90 and 353,622,771.80
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Solution
The fourth proportional to 398,972,403.80, 597,324,864.90 and 353,622,771.80 is: 529,429,284.78
Step by Step Solution
- Step 1: Write the proportion equation
398,972,403.80 : 597,324,864.90 = 353,622,771.80 : x - Step 2: Convert to fraction form
398,972,403.80/597,324,864.90 = 353,622,771.80/x - Step 3: Cross multiply
398,972,403.80x = 597,324,864.90 × 353,622,771.80 - Step 4: Simplify right side
398,972,403.80x = 211,227,674,390,998,528 - Step 5: Solve for x
x = 211,227,674,390,998,528/398,972,403.80 - Step 6: Final answer
x = 529,429,284.78
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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.