Finding the Fourth Proportional to 12,979,279,393.96, 19,466,194,716.74 and 3,660,848,137.48
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Solution
The fourth proportional to 12,979,279,393.96, 19,466,194,716.74 and 3,660,848,137.48 is: 5,490,503,787.58
Step by Step Solution
- Step 1: Write the proportion equation
12,979,279,393.96 : 19,466,194,716.74 = 3,660,848,137.48 : x - Step 2: Convert to fraction form
12,979,279,393.96/19,466,194,716.74 = 3,660,848,137.48/x - Step 3: Cross multiply
12,979,279,393.96x = 19,466,194,716.74 × 3,660,848,137.48 - Step 4: Simplify right side
12,979,279,393.96x = 71,262,782,672,600,653,824 - Step 5: Solve for x
x = 71,262,782,672,600,653,824/12,979,279,393.96 - Step 6: Final answer
x = 5,490,503,787.58
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1.5x scale
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.