Finding the Fourth Proportional to 112,816,619.54, 169,239,993.72 and 44,643,368.06
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Solution
The fourth proportional to 112,816,619.54, 169,239,993.72 and 44,643,368.06 is: 66,971,013.32
Step by Step Solution
- Step 1: Write the proportion equation
112,816,619.54 : 169,239,993.72 = 44,643,368.06 : x - Step 2: Convert to fraction form
112,816,619.54/169,239,993.72 = 44,643,368.06/x - Step 3: Cross multiply
112,816,619.54x = 169,239,993.72 × 44,643,368.06 - Step 4: Simplify right side
112,816,619.54x = 7,555,443,330,114,049 - Step 5: Solve for x
x = 7,555,443,330,114,049/112,816,619.54 - Step 6: Final answer
x = 66,971,013.32
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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.