Finding the Fourth Proportional to 5,642,547.68, 7,789,099.68 and 3,809,489.12
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Solution
The fourth proportional to 5,642,547.68, 7,789,099.68 and 3,809,489.12 is: 5,258,704.43
Step by Step Solution
- Step 1: Write the proportion equation
5,642,547.68 : 7,789,099.68 = 3,809,489.12 : x - Step 2: Convert to fraction form
5,642,547.68/7,789,099.68 = 3,809,489.12/x - Step 3: Cross multiply
5,642,547.68x = 7,789,099.68 × 3,809,489.12 - Step 4: Simplify right side
5,642,547.68x = 29,672,490,485,555.48 - Step 5: Solve for x
x = 29,672,490,485,555.48/5,642,547.68 - Step 6: Final answer
x = 5,258,704.43
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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.