Finding the Fourth Proportional to 478,336,324.32, 660,104,122.41 and 258,319,750.32
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Solution
The fourth proportional to 478,336,324.32, 660,104,122.41 and 258,319,750.32 is: 356,481,252.66
Step by Step Solution
- Step 1: Write the proportion equation
478,336,324.32 : 660,104,122.41 = 258,319,750.32 : x - Step 2: Convert to fraction form
478,336,324.32/660,104,122.41 = 258,319,750.32/x - Step 3: Cross multiply
478,336,324.32x = 660,104,122.41 × 258,319,750.32 - Step 4: Simplify right side
478,336,324.32x = 170,517,932,086,153,888 - Step 5: Solve for x
x = 170,517,932,086,153,888/478,336,324.32 - Step 6: Final answer
x = 356,481,252.66
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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.