Finding the Fourth Proportional to 31,628,135.29, 47,448,141.85 and 14,357,548.36
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Solution
The fourth proportional to 31,628,135.29, 47,448,141.85 and 14,357,548.36 is: 21,539,018.50
Step by Step Solution
- Step 1: Write the proportion equation
31,628,135.29 : 47,448,141.85 = 14,357,548.36 : x - Step 2: Convert to fraction form
31,628,135.29/47,448,141.85 = 14,357,548.36/x - Step 3: Cross multiply
31,628,135.29x = 47,448,141.85 × 14,357,548.36 - Step 4: Simplify right side
31,628,135.29x = 681,238,990,992,153.62 - Step 5: Solve for x
x = 681,238,990,992,153.62/31,628,135.29 - Step 6: Final answer
x = 21,539,018.50
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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.