Finding the Fourth Proportional to 23,163,138.67, 31,965,719.70 and 12,709,152.24
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Solution
The fourth proportional to 23,163,138.67, 31,965,719.70 and 12,709,152.24 is: 17,538,952.90
Step by Step Solution
- Step 1: Write the proportion equation
23,163,138.67 : 31,965,719.70 = 12,709,152.24 : x - Step 2: Convert to fraction form
23,163,138.67/31,965,719.70 = 12,709,152.24/x - Step 3: Cross multiply
23,163,138.67x = 31,965,719.70 × 12,709,152.24 - Step 4: Simplify right side
23,163,138.67x = 406,257,198,128,467.12 - Step 5: Solve for x
x = 406,257,198,128,467.12/23,163,138.67 - Step 6: Final answer
x = 17,538,952.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.