Finding the Fourth Proportional to 115,097,795.70, 158,905,345.77 and 74,902,093.26
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Solution
The fourth proportional to 115,097,795.70, 158,905,345.77 and 74,902,093.26 is: 103,410,694.84
Step by Step Solution
- Step 1: Write the proportion equation
115,097,795.70 : 158,905,345.77 = 74,902,093.26 : x - Step 2: Convert to fraction form
115,097,795.70/158,905,345.77 = 74,902,093.26/x - Step 3: Cross multiply
115,097,795.70x = 158,905,345.77 × 74,902,093.26 - Step 4: Simplify right side
115,097,795.70x = 11,902,343,028,377,088 - Step 5: Solve for x
x = 11,902,343,028,377,088/115,097,795.70 - Step 6: Final answer
x = 103,410,694.84
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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.