Finding the Fourth Proportional to 265,890,809.74, 366,990,540.05 and 155,917,952.14
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Solution
The fourth proportional to 265,890,809.74, 366,990,540.05 and 155,917,952.14 is: 215,202,674.79
Step by Step Solution
- Step 1: Write the proportion equation
265,890,809.74 : 366,990,540.05 = 155,917,952.14 : x - Step 2: Convert to fraction form
265,890,809.74/366,990,540.05 = 155,917,952.14/x - Step 3: Cross multiply
265,890,809.74x = 366,990,540.05 × 155,917,952.14 - Step 4: Simplify right side
265,890,809.74x = 57,220,413,459,348,648 - Step 5: Solve for x
x = 57,220,413,459,348,648/265,890,809.74 - Step 6: Final answer
x = 215,202,674.79
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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.