Finding the Fourth Proportional to 198,153,578.80, 297,230,368.20 and 68,747,695.30
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Solution
The fourth proportional to 198,153,578.80, 297,230,368.20 and 68,747,695.30 is: 103,121,542.95
Step by Step Solution
- Step 1: Write the proportion equation
198,153,578.80 : 297,230,368.20 = 68,747,695.30 : x - Step 2: Convert to fraction form
198,153,578.80/297,230,368.20 = 68,747,695.30/x - Step 3: Cross multiply
198,153,578.80x = 297,230,368.20 × 68,747,695.30 - Step 4: Simplify right side
198,153,578.80x = 20,433,902,786,920,408 - Step 5: Solve for x
x = 20,433,902,786,920,408/198,153,578.80 - Step 6: Final answer
x = 103,121,542.95
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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.