Finding the Fourth Proportional to 479,393,288.38, 661,374,506.49 and 278,415,950.47
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Solution
The fourth proportional to 479,393,288.38, 661,374,506.49 and 278,415,950.47 is: 384,104,692.96
Step by Step Solution
- Step 1: Write the proportion equation
479,393,288.38 : 661,374,506.49 = 278,415,950.47 : x - Step 2: Convert to fraction form
479,393,288.38/661,374,506.49 = 278,415,950.47/x - Step 3: Cross multiply
479,393,288.38x = 661,374,506.49 × 278,415,950.47 - Step 4: Simplify right side
479,393,288.38x = 184,137,211,841,040,544 - Step 5: Solve for x
x = 184,137,211,841,040,544/479,393,288.38 - Step 6: Final answer
x = 384,104,692.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.