Finding the Fourth Proportional to 128,679,818.10, 192,911,240.94 and 55,841,728.42
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Solution
The fourth proportional to 128,679,818.10, 192,911,240.94 and 55,841,728.42 is: 83,715,514.09
Step by Step Solution
- Step 1: Write the proportion equation
128,679,818.10 : 192,911,240.94 = 55,841,728.42 : x - Step 2: Convert to fraction form
128,679,818.10/192,911,240.94 = 55,841,728.42/x - Step 3: Cross multiply
128,679,818.10x = 192,911,240.94 × 55,841,728.42 - Step 4: Simplify right side
128,679,818.10x = 10,772,497,125,736,666 - Step 5: Solve for x
x = 10,772,497,125,736,666/128,679,818.10 - Step 6: Final answer
x = 83,715,514.09
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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.