Finding the Fourth Proportional to 11,317,905.20, 16,975,545.60 and 3,232,128.80
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Solution
The fourth proportional to 11,317,905.20, 16,975,545.60 and 3,232,128.80 is: 4,847,818.47
Step by Step Solution
- Step 1: Write the proportion equation
11,317,905.20 : 16,975,545.60 = 3,232,128.80 : x - Step 2: Convert to fraction form
11,317,905.20/16,975,545.60 = 3,232,128.80/x - Step 3: Cross multiply
11,317,905.20x = 16,975,545.60 × 3,232,128.80 - Step 4: Simplify right side
11,317,905.20x = 54,867,149,829,473.28 - Step 5: Solve for x
x = 54,867,149,829,473.28/11,317,905.20 - Step 6: Final answer
x = 4,847,818.47
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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.