Finding the Fourth Proportional to 265,616,440.80, 398,424,661.20 and 136,476,277.80
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Solution
The fourth proportional to 265,616,440.80, 398,424,661.20 and 136,476,277.80 is: 204,714,416.70
Step by Step Solution
- Step 1: Write the proportion equation
265,616,440.80 : 398,424,661.20 = 136,476,277.80 : x - Step 2: Convert to fraction form
265,616,440.80/398,424,661.20 = 136,476,277.80/x - Step 3: Cross multiply
265,616,440.80x = 398,424,661.20 × 136,476,277.80 - Step 4: Simplify right side
265,616,440.80x = 54,375,514,744,302,088 - Step 5: Solve for x
x = 54,375,514,744,302,088/265,616,440.80 - Step 6: Final answer
x = 204,714,416.70
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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.