Finding the Fourth Proportional to 10,921,115.70, 16,381,673.55 and 7,328,603.70
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Solution
The fourth proportional to 10,921,115.70, 16,381,673.55 and 7,328,603.70 is: 10,992,905.55
Step by Step Solution
- Step 1: Write the proportion equation
10,921,115.70 : 16,381,673.55 = 7,328,603.70 : x - Step 2: Convert to fraction form
10,921,115.70/16,381,673.55 = 7,328,603.70/x - Step 3: Cross multiply
10,921,115.70x = 16,381,673.55 × 7,328,603.70 - Step 4: Simplify right side
10,921,115.70x = 120,054,793,390,722.14 - Step 5: Solve for x
x = 120,054,793,390,722.14/10,921,115.70 - Step 6: Final answer
x = 10,992,905.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.