Finding the Fourth Proportional to 145,382,329.82, 218,075,394.21 and 48,338,037.41
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Solution
The fourth proportional to 145,382,329.82, 218,075,394.21 and 48,338,037.41 is: 72,507,687.66
Step by Step Solution
- Step 1: Write the proportion equation
145,382,329.82 : 218,075,394.21 = 48,338,037.41 : x - Step 2: Convert to fraction form
145,382,329.82/218,075,394.21 = 48,338,037.41/x - Step 3: Cross multiply
145,382,329.82x = 218,075,394.21 × 48,338,037.41 - Step 4: Simplify right side
145,382,329.82x = 10,541,336,562,191,412 - Step 5: Solve for x
x = 10,541,336,562,191,412/145,382,329.82 - Step 6: Final answer
x = 72,507,687.66
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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.