Finding the Fourth Proportional to 208,212,369.84, 310,457,080.90 and 202,491,864.18
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Solution
The fourth proportional to 208,212,369.84, 310,457,080.90 and 202,491,864.18 is: 301,927,465.25
Step by Step Solution
- Step 1: Write the proportion equation
208,212,369.84 : 310,457,080.90 = 202,491,864.18 : x - Step 2: Convert to fraction form
208,212,369.84/310,457,080.90 = 202,491,864.18/x - Step 3: Cross multiply
208,212,369.84x = 310,457,080.90 × 202,491,864.18 - Step 4: Simplify right side
208,212,369.84x = 62,865,033,059,575,192 - Step 5: Solve for x
x = 62,865,033,059,575,192/208,212,369.84 - Step 6: Final answer
x = 301,927,465.25
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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.