Finding the Fourth Proportional to 268,641,170.80, 402,289,909.80 and 214,893,458.80
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Solution
The fourth proportional to 268,641,170.80, 402,289,909.80 and 214,893,458.80 is: 321,802,759.79
Step by Step Solution
- Step 1: Write the proportion equation
268,641,170.80 : 402,289,909.80 = 214,893,458.80 : x - Step 2: Convert to fraction form
268,641,170.80/402,289,909.80 = 214,893,458.80/x - Step 3: Cross multiply
268,641,170.80x = 402,289,909.80 × 214,893,458.80 - Step 4: Simplify right side
268,641,170.80x = 86,449,470,157,262,016 - Step 5: Solve for x
x = 86,449,470,157,262,016/268,641,170.80 - Step 6: Final answer
x = 321,802,759.79
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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.