Finding the Fourth Proportional to 7,237,820.68, 9,979,754.10 and 5,399,086.96
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Solution
The fourth proportional to 7,237,820.68, 9,979,754.10 and 5,399,086.96 is: 7,444,445.31
Step by Step Solution
- Step 1: Write the proportion equation
7,237,820.68 : 9,979,754.10 = 5,399,086.96 : x - Step 2: Convert to fraction form
7,237,820.68/9,979,754.10 = 5,399,086.96/x - Step 3: Cross multiply
7,237,820.68x = 9,979,754.10 × 5,399,086.96 - Step 4: Simplify right side
7,237,820.68x = 53,881,560,225,316.53 - Step 5: Solve for x
x = 53,881,560,225,316.53/7,237,820.68 - Step 6: Final answer
x = 7,444,445.31
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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.