Finding the Fourth Proportional to 355,653,243.09, 490,807,286.82 and 194,714,541.81
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Solution
The fourth proportional to 355,653,243.09, 490,807,286.82 and 194,714,541.81 is: 268,709,249.32
Step by Step Solution
- Step 1: Write the proportion equation
355,653,243.09 : 490,807,286.82 = 194,714,541.81 : x - Step 2: Convert to fraction form
355,653,243.09/490,807,286.82 = 194,714,541.81/x - Step 3: Cross multiply
355,653,243.09x = 490,807,286.82 × 194,714,541.81 - Step 4: Simplify right side
355,653,243.09x = 95,567,315,970,165,552 - Step 5: Solve for x
x = 95,567,315,970,165,552/355,653,243.09 - Step 6: Final answer
x = 268,709,249.32
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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.