Finding the Fourth Proportional to 7,098,837.68, 9,798,402.80 and 4,199,236.54
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Solution
The fourth proportional to 7,098,837.68, 9,798,402.80 and 4,199,236.54 is: 5,796,133.53
Step by Step Solution
- Step 1: Write the proportion equation
7,098,837.68 : 9,798,402.80 = 4,199,236.54 : x - Step 2: Convert to fraction form
7,098,837.68/9,798,402.80 = 4,199,236.54/x - Step 3: Cross multiply
7,098,837.68x = 9,798,402.80 × 4,199,236.54 - Step 4: Simplify right side
7,098,837.68x = 41,145,811,071,398.31 - Step 5: Solve for x
x = 41,145,811,071,398.31/7,098,837.68 - Step 6: Final answer
x = 5,796,133.53
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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.