Finding the Fourth Proportional to 128,662,786.60, 177,556,016.98 and 69,925,455.98
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Solution
The fourth proportional to 128,662,786.60, 177,556,016.98 and 69,925,455.98 is: 96,497,874.62
Step by Step Solution
- Step 1: Write the proportion equation
128,662,786.60 : 177,556,016.98 = 69,925,455.98 : x - Step 2: Convert to fraction form
128,662,786.60/177,556,016.98 = 69,925,455.98/x - Step 3: Cross multiply
128,662,786.60x = 177,556,016.98 × 69,925,455.98 - Step 4: Simplify right side
128,662,786.60x = 12,415,685,449,319,122 - Step 5: Solve for x
x = 12,415,685,449,319,122/128,662,786.60 - Step 6: Final answer
x = 96,497,874.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.