Finding the Third Proportional to 520,623,423 and 690,944,431.50
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Solution
The third proportional to 520,623,423 and 690,944,431.50 is: 916,985,648.99
Step by Step Solution
- Step 1: Write the proportion equation
520,623,423 : 690,944,431.50 = 690,944,431.50 : x - Step 2: Convert to fraction form
520,623,423/690,944,431.50 = 690,944,431.50/x - Step 3: Cross multiply
520,623,423x = 690,944,431.50 × 690,944,431.50 - Step 4: Simplify right side
520,623,423x = 477,404,207,420,858,176 - Step 5: Solve for x
x = 477,404,207,420,858,176/520,623,423 - Step 6: Final answer
x = 916,985,648.99
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Why These Related Problems?
These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.