Finding the Fourth Proportional to 208,212,349.18, 310,457,050.34 and 202,491,843.55
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Solution
The fourth proportional to 208,212,349.18, 310,457,050.34 and 202,491,843.55 is: 301,927,434.73
Step by Step Solution
- Step 1: Write the proportion equation
208,212,349.18 : 310,457,050.34 = 202,491,843.55 : x - Step 2: Convert to fraction form
208,212,349.18/310,457,050.34 = 202,491,843.55/x - Step 3: Cross multiply
208,212,349.18x = 310,457,050.34 × 202,491,843.55 - Step 4: Simplify right side
208,212,349.18x = 62,865,020,467,541,056 - Step 5: Solve for x
x = 62,865,020,467,541,056/208,212,349.18 - Step 6: Final answer
x = 301,927,434.73
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.