Finding the Fourth Proportional to 664,675,074.05, 996,121,408.58 and 517,300,590.79
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Solution
The fourth proportional to 664,675,074.05, 996,121,408.58 and 517,300,590.79 is: 775,257,284.75
Step by Step Solution
- Step 1: Write the proportion equation
664,675,074.05 : 996,121,408.58 = 517,300,590.79 : x - Step 2: Convert to fraction form
664,675,074.05/996,121,408.58 = 517,300,590.79/x - Step 3: Cross multiply
664,675,074.05x = 996,121,408.58 × 517,300,590.79 - Step 4: Simplify right side
664,675,074.05x = 515,294,193,149,433,920 - Step 5: Solve for x
x = 515,294,193,149,433,920/664,675,074.05 - Step 6: Final answer
x = 775,257,284.75
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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.