Finding the Fourth Proportional to 198,443,474, 297,704,943.12 and 111,129,160.08
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Solution
The fourth proportional to 198,443,474, 297,704,943.12 and 111,129,160.08 is: 166,715,990.27
Step by Step Solution
- Step 1: Write the proportion equation
198,443,474 : 297,704,943.12 = 111,129,160.08 : x - Step 2: Convert to fraction form
198,443,474/297,704,943.12 = 111,129,160.08/x - Step 3: Cross multiply
198,443,474x = 297,704,943.12 × 111,129,160.08 - Step 4: Simplify right side
198,443,474x = 33,083,700,280,589,776 - Step 5: Solve for x
x = 33,083,700,280,589,776/198,443,474 - Step 6: Final answer
x = 166,715,990.27
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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.