Finding the Fourth Proportional to 75,376,411.80, 113,064,617.70 and 49,548,379.20
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Solution
The fourth proportional to 75,376,411.80, 113,064,617.70 and 49,548,379.20 is: 74,322,568.80
Step by Step Solution
- Step 1: Write the proportion equation
75,376,411.80 : 113,064,617.70 = 49,548,379.20 : x - Step 2: Convert to fraction form
75,376,411.80/113,064,617.70 = 49,548,379.20/x - Step 3: Cross multiply
75,376,411.80x = 113,064,617.70 × 49,548,379.20 - Step 4: Simplify right side
75,376,411.80x = 5,602,168,551,902,632 - Step 5: Solve for x
x = 5,602,168,551,902,632/75,376,411.80 - Step 6: Final answer
x = 74,322,568.80
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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.