Finding the Fourth Proportional to 378,347,026.20, 522,131,778.81 and 219,564,855.69
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Solution
The fourth proportional to 378,347,026.20, 522,131,778.81 and 219,564,855.69 is: 303,006,977.00
Step by Step Solution
- Step 1: Write the proportion equation
378,347,026.20 : 522,131,778.81 = 219,564,855.69 : x - Step 2: Convert to fraction form
378,347,026.20/522,131,778.81 = 219,564,855.69/x - Step 3: Cross multiply
378,347,026.20x = 522,131,778.81 × 219,564,855.69 - Step 4: Simplify right side
378,347,026.20x = 114,641,788,662,970,000 - Step 5: Solve for x
x = 114,641,788,662,970,000/378,347,026.20 - Step 6: Final answer
x = 303,006,977.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.