Finding the Fourth Proportional to 265,890,537.36, 366,990,163.56 and 155,917,679.76
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Solution
The fourth proportional to 265,890,537.36, 366,990,163.56 and 155,917,679.76 is: 215,202,298.53
Step by Step Solution
- Step 1: Write the proportion equation
265,890,537.36 : 366,990,163.56 = 155,917,679.76 : x - Step 2: Convert to fraction form
265,890,537.36/366,990,163.56 = 155,917,679.76/x - Step 3: Cross multiply
265,890,537.36x = 366,990,163.56 × 155,917,679.76 - Step 4: Simplify right side
265,890,537.36x = 57,220,254,797,018,096 - Step 5: Solve for x
x = 57,220,254,797,018,096/265,890,537.36 - Step 6: Final answer
x = 215,202,298.53
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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.