Finding the Fourth Proportional to 265,890,812.74, 366,990,544.19 and 155,917,955.14
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Solution
The fourth proportional to 265,890,812.74, 366,990,544.19 and 155,917,955.14 is: 215,202,678.93
Step by Step Solution
- Step 1: Write the proportion equation
265,890,812.74 : 366,990,544.19 = 155,917,955.14 : x - Step 2: Convert to fraction form
265,890,812.74/366,990,544.19 = 155,917,955.14/x - Step 3: Cross multiply
265,890,812.74x = 366,990,544.19 × 155,917,955.14 - Step 4: Simplify right side
265,890,812.74x = 57,220,415,205,820,600 - Step 5: Solve for x
x = 57,220,415,205,820,600/265,890,812.74 - Step 6: Final answer
x = 215,202,678.93
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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.