Finding the Fourth Proportional to 172,479,240.10, 258,844,831.35 and 121,460,904.10
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Solution
The fourth proportional to 172,479,240.10, 258,844,831.35 and 121,460,904.10 is: 182,280,065.82
Step by Step Solution
- Step 1: Write the proportion equation
172,479,240.10 : 258,844,831.35 = 121,460,904.10 : x - Step 2: Convert to fraction form
172,479,240.10/258,844,831.35 = 121,460,904.10/x - Step 3: Cross multiply
172,479,240.10x = 258,844,831.35 × 121,460,904.10 - Step 4: Simplify right side
172,479,240.10x = 31,439,527,237,383,020 - Step 5: Solve for x
x = 31,439,527,237,383,020/172,479,240.10 - Step 6: Final answer
x = 182,280,065.82
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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.