Finding the Fourth Proportional to 3,855,656.68, 5,321,113.38 and 2,136,941.80
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Solution
The fourth proportional to 3,855,656.68, 5,321,113.38 and 2,136,941.80 is: 2,949,149.92
Step by Step Solution
- Step 1: Write the proportion equation
3,855,656.68 : 5,321,113.38 = 2,136,941.80 : x - Step 2: Convert to fraction form
3,855,656.68/5,321,113.38 = 2,136,941.80/x - Step 3: Cross multiply
3,855,656.68x = 5,321,113.38 × 2,136,941.80 - Step 4: Simplify right side
3,855,656.68x = 11,370,909,604,261.28 - Step 5: Solve for x
x = 11,370,909,604,261.28/3,855,656.68 - Step 6: Final answer
x = 2,949,149.92
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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.