Finding the Fourth Proportional to 331,879,442.40, 497,819,163.60 and 159,692,558.40
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Solution
The fourth proportional to 331,879,442.40, 497,819,163.60 and 159,692,558.40 is: 239,538,837.60
Step by Step Solution
- Step 1: Write the proportion equation
331,879,442.40 : 497,819,163.60 = 159,692,558.40 : x - Step 2: Convert to fraction form
331,879,442.40/497,819,163.60 = 159,692,558.40/x - Step 3: Cross multiply
331,879,442.40x = 497,819,163.60 × 159,692,558.40 - Step 4: Simplify right side
331,879,442.40x = 79,498,015,855,832,160 - Step 5: Solve for x
x = 79,498,015,855,832,160/331,879,442.40 - Step 6: Final answer
x = 239,538,837.60
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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.