Finding the Fourth Proportional to 397,436,639.01, 596,243,872.42 and 121,109,479.70
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Solution
The fourth proportional to 397,436,639.01, 596,243,872.42 and 121,109,479.70 is: 181,691,313.97
Step by Step Solution
- Step 1: Write the proportion equation
397,436,639.01 : 596,243,872.42 = 121,109,479.70 : x - Step 2: Convert to fraction form
397,436,639.01/596,243,872.42 = 121,109,479.70/x - Step 3: Cross multiply
397,436,639.01x = 596,243,872.42 × 121,109,479.70 - Step 4: Simplify right side
397,436,639.01x = 72,210,785,163,185,360 - Step 5: Solve for x
x = 72,210,785,163,185,360/397,436,639.01 - Step 6: Final answer
x = 181,691,313.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.