Finding the Fourth Proportional to 12,946,375.40, 19,424,228.70 and 5,378,772.20
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Solution
The fourth proportional to 12,946,375.40, 19,424,228.70 and 5,378,772.20 is: 8,070,096.70
Step by Step Solution
- Step 1: Write the proportion equation
12,946,375.40 : 19,424,228.70 = 5,378,772.20 : x - Step 2: Convert to fraction form
12,946,375.40/19,424,228.70 = 5,378,772.20/x - Step 3: Cross multiply
12,946,375.40x = 19,424,228.70 × 5,378,772.20 - Step 4: Simplify right side
12,946,375.40x = 104,478,501,338,002.14 - Step 5: Solve for x
x = 104,478,501,338,002.14/12,946,375.40 - Step 6: Final answer
x = 8,070,096.70
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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.