Finding the Fourth Proportional to 141,479,405.07, 212,219,107.74 and 39,243,442.56
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Solution
The fourth proportional to 141,479,405.07, 212,219,107.74 and 39,243,442.56 is: 58,865,163.88
Step by Step Solution
- Step 1: Write the proportion equation
141,479,405.07 : 212,219,107.74 = 39,243,442.56 : x - Step 2: Convert to fraction form
141,479,405.07/212,219,107.74 = 39,243,442.56/x - Step 3: Cross multiply
141,479,405.07x = 212,219,107.74 × 39,243,442.56 - Step 4: Simplify right side
141,479,405.07x = 8,328,208,364,729,142 - Step 5: Solve for x
x = 8,328,208,364,729,142/141,479,405.07 - Step 6: Final answer
x = 58,865,163.88
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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.