Finding the Fourth Proportional to 129,435,657.68, 194,154,212.31 and 43,173,827.61
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Solution
The fourth proportional to 129,435,657.68, 194,154,212.31 and 43,173,827.61 is: 64,760,983.51
Step by Step Solution
- Step 1: Write the proportion equation
129,435,657.68 : 194,154,212.31 = 43,173,827.61 : x - Step 2: Convert to fraction form
129,435,657.68/194,154,212.31 = 43,173,827.61/x - Step 3: Cross multiply
129,435,657.68x = 194,154,212.31 × 43,173,827.61 - Step 4: Simplify right side
129,435,657.68x = 8,382,380,492,027,280 - Step 5: Solve for x
x = 8,382,380,492,027,280/129,435,657.68 - Step 6: Final answer
x = 64,760,983.51
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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.