Finding the Fourth Proportional to 6,136,489.78, 8,466,478.86 and 3,557,655.70
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Solution
The fourth proportional to 6,136,489.78, 8,466,478.86 and 3,557,655.70 is: 4,908,476.65
Step by Step Solution
- Step 1: Write the proportion equation
6,136,489.78 : 8,466,478.86 = 3,557,655.70 : x - Step 2: Convert to fraction form
6,136,489.78/8,466,478.86 = 3,557,655.70/x - Step 3: Cross multiply
6,136,489.78x = 8,466,478.86 × 3,557,655.70 - Step 4: Simplify right side
6,136,489.78x = 30,120,816,775,208.50 - Step 5: Solve for x
x = 30,120,816,775,208.50/6,136,489.78 - Step 6: Final answer
x = 4,908,476.65
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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.