Finding the Fourth Proportional to 356,156,664.56, 491,496,243.68 and 197,397,037.32
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Solution
The fourth proportional to 356,156,664.56, 491,496,243.68 and 197,397,037.32 is: 272,407,937.32
Step by Step Solution
- Step 1: Write the proportion equation
356,156,664.56 : 491,496,243.68 = 197,397,037.32 : x - Step 2: Convert to fraction form
356,156,664.56/491,496,243.68 = 197,397,037.32/x - Step 3: Cross multiply
356,156,664.56x = 491,496,243.68 × 197,397,037.32 - Step 4: Simplify right side
356,156,664.56x = 97,019,902,356,340,768 - Step 5: Solve for x
x = 97,019,902,356,340,768/356,156,664.56 - Step 6: Final answer
x = 272,407,937.32
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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.