Finding the Fourth Proportional to 11,988,444.64, 16,545,335.70 and 7,345,311.05
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Solution
The fourth proportional to 11,988,444.64, 16,545,335.70 and 7,345,311.05 is: 10,137,314.80
Step by Step Solution
- Step 1: Write the proportion equation
11,988,444.64 : 16,545,335.70 = 7,345,311.05 : x - Step 2: Convert to fraction form
11,988,444.64/16,545,335.70 = 7,345,311.05/x - Step 3: Cross multiply
11,988,444.64x = 16,545,335.70 × 7,345,311.05 - Step 4: Simplify right side
11,988,444.64x = 121,530,637,212,077.73 - Step 5: Solve for x
x = 121,530,637,212,077.73/11,988,444.64 - Step 6: Final answer
x = 10,137,314.80
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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.