Finding the Fourth Proportional to 12,392,355.58, 18,595,808.80 and 5,203,336.66
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Solution
The fourth proportional to 12,392,355.58, 18,595,808.80 and 5,203,336.66 is: 7,808,059.82
Step by Step Solution
- Step 1: Write the proportion equation
12,392,355.58 : 18,595,808.80 = 5,203,336.66 : x - Step 2: Convert to fraction form
12,392,355.58/18,595,808.80 = 5,203,336.66/x - Step 3: Cross multiply
12,392,355.58x = 18,595,808.80 × 5,203,336.66 - Step 4: Simplify right side
12,392,355.58x = 96,760,253,651,390.61 - Step 5: Solve for x
x = 96,760,253,651,390.61/12,392,355.58 - Step 6: Final answer
x = 7,808,059.82
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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.