Finding the Fourth Proportional to 75,259,352.56, 103,902,433.79 and 47,405,938.12
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Solution
The fourth proportional to 75,259,352.56, 103,902,433.79 and 47,405,938.12 is: 65,448,242.37
Step by Step Solution
- Step 1: Write the proportion equation
75,259,352.56 : 103,902,433.79 = 47,405,938.12 : x - Step 2: Convert to fraction form
75,259,352.56/103,902,433.79 = 47,405,938.12/x - Step 3: Cross multiply
75,259,352.56x = 103,902,433.79 × 47,405,938.12 - Step 4: Simplify right side
75,259,352.56x = 4,925,592,346,403,036 - Step 5: Solve for x
x = 4,925,592,346,403,036/75,259,352.56 - Step 6: Final answer
x = 65,448,242.37
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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.