Finding the Fourth Proportional to 326,136,000.64, 489,203,993.28 and 118,889,950.08
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Solution
The fourth proportional to 326,136,000.64, 489,203,993.28 and 118,889,950.08 is: 178,334,922.32
Step by Step Solution
- Step 1: Write the proportion equation
326,136,000.64 : 489,203,993.28 = 118,889,950.08 : x - Step 2: Convert to fraction form
326,136,000.64/489,203,993.28 = 118,889,950.08/x - Step 3: Cross multiply
326,136,000.64x = 489,203,993.28 × 118,889,950.08 - Step 4: Simplify right side
326,136,000.64x = 58,161,438,339,995,848 - Step 5: Solve for x
x = 58,161,438,339,995,848/326,136,000.64 - Step 6: Final answer
x = 178,334,922.32
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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.