Finding the Fourth Proportional to 219,723,326.64, 303,212,197.80 and 120,603,937.68
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Solution
The fourth proportional to 219,723,326.64, 303,212,197.80 and 120,603,937.68 is: 166,430,144.52
Step by Step Solution
- Step 1: Write the proportion equation
219,723,326.64 : 303,212,197.80 = 120,603,937.68 : x - Step 2: Convert to fraction form
219,723,326.64/303,212,197.80 = 120,603,937.68/x - Step 3: Cross multiply
219,723,326.64x = 303,212,197.80 × 120,603,937.68 - Step 4: Simplify right side
219,723,326.64x = 36,568,585,007,287,040 - Step 5: Solve for x
x = 36,568,585,007,287,040/219,723,326.64 - Step 6: Final answer
x = 166,430,144.52
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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.