Finding the Fourth Proportional to 87,857,472.26, 121,249,147.74 and 48,700,899.38
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Solution
The fourth proportional to 87,857,472.26, 121,249,147.74 and 48,700,899.38 is: 67,210,476.15
Step by Step Solution
- Step 1: Write the proportion equation
87,857,472.26 : 121,249,147.74 = 48,700,899.38 : x - Step 2: Convert to fraction form
87,857,472.26/121,249,147.74 = 48,700,899.38/x - Step 3: Cross multiply
87,857,472.26x = 121,249,147.74 × 48,700,899.38 - Step 4: Simplify right side
87,857,472.26x = 5,904,942,543,996,494 - Step 5: Solve for x
x = 5,904,942,543,996,494/87,857,472.26 - Step 6: Final answer
x = 67,210,476.15
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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.