Finding the Fourth Proportional to 345,862,214.55, 477,289,296.86 and 189,229,952.79
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Solution
The fourth proportional to 345,862,214.55, 477,289,296.86 and 189,229,952.79 is: 261,137,028.88
Step by Step Solution
- Step 1: Write the proportion equation
345,862,214.55 : 477,289,296.86 = 189,229,952.79 : x - Step 2: Convert to fraction form
345,862,214.55/477,289,296.86 = 189,229,952.79/x - Step 3: Cross multiply
345,862,214.55x = 477,289,296.86 × 189,229,952.79 - Step 4: Simplify right side
345,862,214.55x = 90,317,431,111,043,952 - Step 5: Solve for x
x = 90,317,431,111,043,952/345,862,214.55 - Step 6: Final answer
x = 261,137,028.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.