Finding the Fourth Proportional to 10,306,658.40, 15,461,737.20 and 3,118,135.20
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Solution
The fourth proportional to 10,306,658.40, 15,461,737.20 and 3,118,135.20 is: 4,677,732.12
Step by Step Solution
- Step 1: Write the proportion equation
10,306,658.40 : 15,461,737.20 = 3,118,135.20 : x - Step 2: Convert to fraction form
10,306,658.40/15,461,737.20 = 3,118,135.20/x - Step 3: Cross multiply
10,306,658.40x = 15,461,737.20 × 3,118,135.20 - Step 4: Simplify right side
10,306,658.40x = 48,211,787,016,469.44 - Step 5: Solve for x
x = 48,211,787,016,469.44/10,306,658.40 - Step 6: Final answer
x = 4,677,732.12
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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.