Finding the Fourth Proportional to 90,565,570.70, 135,593,249.78 and 81,382,270.22
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Solution
The fourth proportional to 90,565,570.70, 135,593,249.78 and 81,382,270.22 is: 121,844,166.70
Step by Step Solution
- Step 1: Write the proportion equation
90,565,570.70 : 135,593,249.78 = 81,382,270.22 : x - Step 2: Convert to fraction form
90,565,570.70/135,593,249.78 = 81,382,270.22/x - Step 3: Cross multiply
90,565,570.70x = 135,593,249.78 × 81,382,270.22 - Step 4: Simplify right side
90,565,570.70x = 11,034,886,493,603,916 - Step 5: Solve for x
x = 11,034,886,493,603,916/90,565,570.70 - Step 6: Final answer
x = 121,844,166.70
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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.