Finding the Fourth Proportional to 154,872,331.30, 232,308,496.95 and 108,514,929.70
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Solution
The fourth proportional to 154,872,331.30, 232,308,496.95 and 108,514,929.70 is: 162,772,394.55
Step by Step Solution
- Step 1: Write the proportion equation
154,872,331.30 : 232,308,496.95 = 108,514,929.70 : x - Step 2: Convert to fraction form
154,872,331.30/232,308,496.95 = 108,514,929.70/x - Step 3: Cross multiply
154,872,331.30x = 232,308,496.95 × 108,514,929.70 - Step 4: Simplify right side
154,872,331.30x = 25,208,940,215,241,912 - Step 5: Solve for x
x = 25,208,940,215,241,912/154,872,331.30 - Step 6: Final answer
x = 162,772,394.55
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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.