Finding the Fourth Proportional to 161,677,815.75, 223,115,385.74 and 88,338,957.75
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Solution
The fourth proportional to 161,677,815.75, 223,115,385.74 and 88,338,957.75 is: 121,907,761.70
Step by Step Solution
- Step 1: Write the proportion equation
161,677,815.75 : 223,115,385.74 = 88,338,957.75 : x - Step 2: Convert to fraction form
161,677,815.75/223,115,385.74 = 88,338,957.75/x - Step 3: Cross multiply
161,677,815.75x = 223,115,385.74 × 88,338,957.75 - Step 4: Simplify right side
161,677,815.75x = 19,709,780,633,819,120 - Step 5: Solve for x
x = 19,709,780,633,819,120/161,677,815.75 - Step 6: Final answer
x = 121,907,761.70
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1.5x scale
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.