Finding the Fourth Proportional to 388,202,494.08, 582,109,030.08 and 129,326,701.44
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Solution
The fourth proportional to 388,202,494.08, 582,109,030.08 and 129,326,701.44 is: 193,925,185.66
Step by Step Solution
- Step 1: Write the proportion equation
388,202,494.08 : 582,109,030.08 = 129,326,701.44 : x - Step 2: Convert to fraction form
388,202,494.08/582,109,030.08 = 129,326,701.44/x - Step 3: Cross multiply
388,202,494.08x = 582,109,030.08 × 129,326,701.44 - Step 4: Simplify right side
388,202,494.08x = 75,282,240,738,684,144 - Step 5: Solve for x
x = 75,282,240,738,684,144/388,202,494.08 - Step 6: Final answer
x = 193,925,185.66
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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.