Finding the Fourth Proportional to 136,564,315.40, 188,463,239.36 and 74,684,653.97
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Solution
The fourth proportional to 136,564,315.40, 188,463,239.36 and 74,684,653.97 is: 103,067,274.75
Step by Step Solution
- Step 1: Write the proportion equation
136,564,315.40 : 188,463,239.36 = 74,684,653.97 : x - Step 2: Convert to fraction form
136,564,315.40/188,463,239.36 = 74,684,653.97/x - Step 3: Cross multiply
136,564,315.40x = 188,463,239.36 × 74,684,653.97 - Step 4: Simplify right side
136,564,315.40x = 14,075,311,816,631,212 - Step 5: Solve for x
x = 14,075,311,816,631,212/136,564,315.40 - Step 6: Final answer
x = 103,067,274.75
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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.