Finding the Fourth Proportional to 18,946,995.18, 28,408,272.87 and 7,433,626.02
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Solution
The fourth proportional to 18,946,995.18, 28,408,272.87 and 7,433,626.02 is: 11,145,644.70
Step by Step Solution
- Step 1: Write the proportion equation
18,946,995.18 : 28,408,272.87 = 7,433,626.02 : x - Step 2: Convert to fraction form
18,946,995.18/28,408,272.87 = 7,433,626.02/x - Step 3: Cross multiply
18,946,995.18x = 28,408,272.87 × 7,433,626.02 - Step 4: Simplify right side
18,946,995.18x = 211,176,476,389,692.06 - Step 5: Solve for x
x = 211,176,476,389,692.06/18,946,995.18 - Step 6: Final answer
x = 11,145,644.70
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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.