Finding the Fourth Proportional to 123,239,093.13, 170,075,262.87 and 68,234,949.63
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Solution
The fourth proportional to 123,239,093.13, 170,075,262.87 and 68,234,949.63 is: 94,167,172.94
Step by Step Solution
- Step 1: Write the proportion equation
123,239,093.13 : 170,075,262.87 = 68,234,949.63 : x - Step 2: Convert to fraction form
123,239,093.13/170,075,262.87 = 68,234,949.63/x - Step 3: Cross multiply
123,239,093.13x = 170,075,262.87 × 68,234,949.63 - Step 4: Simplify right side
123,239,093.13x = 11,605,076,995,243,458 - Step 5: Solve for x
x = 11,605,076,995,243,458/123,239,093.13 - Step 6: Final answer
x = 94,167,172.94
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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.