Finding the Fourth Proportional to 5,749,654.68, 7,934,560.86 and 3,171,405.08
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Solution
The fourth proportional to 5,749,654.68, 7,934,560.86 and 3,171,405.08 is: 4,376,559.64
Step by Step Solution
- Step 1: Write the proportion equation
5,749,654.68 : 7,934,560.86 = 3,171,405.08 : x - Step 2: Convert to fraction form
5,749,654.68/7,934,560.86 = 3,171,405.08/x - Step 3: Cross multiply
5,749,654.68x = 7,934,560.86 × 3,171,405.08 - Step 4: Simplify right side
5,749,654.68x = 25,163,706,618,973.17 - Step 5: Solve for x
x = 25,163,706,618,973.17/5,749,654.68 - Step 6: Final answer
x = 4,376,559.64
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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.