Finding the Fourth Proportional to 283,539,988.25, 391,025,149.70 and 194,361,531.24
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Solution
The fourth proportional to 283,539,988.25, 391,025,149.70 and 194,361,531.24 is: 268,040,664.45
Step by Step Solution
- Step 1: Write the proportion equation
283,539,988.25 : 391,025,149.70 = 194,361,531.24 : x - Step 2: Convert to fraction form
283,539,988.25/391,025,149.70 = 194,361,531.24/x - Step 3: Cross multiply
283,539,988.25x = 391,025,149.70 × 194,361,531.24 - Step 4: Simplify right side
283,539,988.25x = 76,000,246,849,042,224 - Step 5: Solve for x
x = 76,000,246,849,042,224/283,539,988.25 - Step 6: Final answer
x = 268,040,664.45
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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.