Finding the Fourth Proportional to 139,968,135.45, 209,952,203.18 and 125,859,361.05
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Solution
The fourth proportional to 139,968,135.45, 209,952,203.18 and 125,859,361.05 is: 188,789,041.58
Step by Step Solution
- Step 1: Write the proportion equation
139,968,135.45 : 209,952,203.18 = 125,859,361.05 : x - Step 2: Convert to fraction form
139,968,135.45/209,952,203.18 = 125,859,361.05/x - Step 3: Cross multiply
139,968,135.45x = 209,952,203.18 × 125,859,361.05 - Step 4: Simplify right side
139,968,135.45x = 26,424,450,142,645,284 - Step 5: Solve for x
x = 26,424,450,142,645,284/139,968,135.45 - Step 6: Final answer
x = 188,789,041.58
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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.