Finding the Fourth Proportional to 256,405,840.24, 384,992,972.88 and 221,968,463.44
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Solution
The fourth proportional to 256,405,840.24, 384,992,972.88 and 221,968,463.44 is: 333,285,304.83
Step by Step Solution
- Step 1: Write the proportion equation
256,405,840.24 : 384,992,972.88 = 221,968,463.44 : x - Step 2: Convert to fraction form
256,405,840.24/384,992,972.88 = 221,968,463.44/x - Step 3: Cross multiply
256,405,840.24x = 384,992,972.88 × 221,968,463.44 - Step 4: Simplify right side
256,405,840.24x = 85,456,298,625,371,184 - Step 5: Solve for x
x = 85,456,298,625,371,184/256,405,840.24 - Step 6: Final answer
x = 333,285,304.83
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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.