Finding the Fourth Proportional to 356,339,161.80, 534,508,742.70 and 330,511,129.20
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Solution
The fourth proportional to 356,339,161.80, 534,508,742.70 and 330,511,129.20 is: 495,766,693.80
Step by Step Solution
- Step 1: Write the proportion equation
356,339,161.80 : 534,508,742.70 = 330,511,129.20 : x - Step 2: Convert to fraction form
356,339,161.80/534,508,742.70 = 330,511,129.20/x - Step 3: Cross multiply
356,339,161.80x = 534,508,742.70 × 330,511,129.20 - Step 4: Simplify right side
356,339,161.80x = 176,661,088,117,049,248 - Step 5: Solve for x
x = 176,661,088,117,049,248/356,339,161.80 - Step 6: Final answer
x = 495,766,693.80
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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.