Finding the Fourth Proportional to 472,393,461.70, 708,590,192.55 and 165,574,857.70
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Solution
The fourth proportional to 472,393,461.70, 708,590,192.55 and 165,574,857.70 is: 248,362,286.55
Step by Step Solution
- Step 1: Write the proportion equation
472,393,461.70 : 708,590,192.55 = 165,574,857.70 : x - Step 2: Convert to fraction form
472,393,461.70/708,590,192.55 = 165,574,857.70/x - Step 3: Cross multiply
472,393,461.70x = 708,590,192.55 × 165,574,857.70 - Step 4: Simplify right side
472,393,461.70x = 117,324,720,299,081,840 - Step 5: Solve for x
x = 117,324,720,299,081,840/472,393,461.70 - Step 6: Final answer
x = 248,362,286.55
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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.