Finding the Fourth Proportional to 12,979,279,381.44, 19,466,194,698 and 3,660,848,124.96
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Solution
The fourth proportional to 12,979,279,381.44, 19,466,194,698 and 3,660,848,124.96 is: 5,490,503,768.81
Step by Step Solution
- Step 1: Write the proportion equation
12,979,279,381.44 : 19,466,194,698 = 3,660,848,124.96 : x - Step 2: Convert to fraction form
12,979,279,381.44/19,466,194,698 = 3,660,848,124.96/x - Step 3: Cross multiply
12,979,279,381.44x = 19,466,194,698 × 3,660,848,124.96 - Step 4: Simplify right side
12,979,279,381.44x = 71,262,782,360,279,597,056 - Step 5: Solve for x
x = 71,262,782,360,279,597,056/12,979,279,381.44 - Step 6: Final answer
x = 5,490,503,768.81
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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.