Finding the Fourth Proportional to 1,040,433,859.62, 1,560,572,306.49 and 331,353,768.42
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Solution
The fourth proportional to 1,040,433,859.62, 1,560,572,306.49 and 331,353,768.42 is: 497,005,657.66
Step by Step Solution
- Step 1: Write the proportion equation
1,040,433,859.62 : 1,560,572,306.49 = 331,353,768.42 : x - Step 2: Convert to fraction form
1,040,433,859.62/1,560,572,306.49 = 331,353,768.42/x - Step 3: Cross multiply
1,040,433,859.62x = 1,560,572,306.49 × 331,353,768.42 - Step 4: Simplify right side
1,040,433,859.62x = 517,101,514,647,352,768 - Step 5: Solve for x
x = 517,101,514,647,352,768/1,040,433,859.62 - Step 6: Final answer
x = 497,005,657.66
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Double scale
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1.5x scale
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.