Finding the Fourth Proportional to 2,657,906.10, 3,986,859.15 and 2,642,159.70
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Solution
The fourth proportional to 2,657,906.10, 3,986,859.15 and 2,642,159.70 is: 3,963,239.55
Step by Step Solution
- Step 1: Write the proportion equation
2,657,906.10 : 3,986,859.15 = 2,642,159.70 : x - Step 2: Convert to fraction form
2,657,906.10/3,986,859.15 = 2,642,159.70/x - Step 3: Cross multiply
2,657,906.10x = 3,986,859.15 × 2,642,159.70 - Step 4: Simplify right side
2,657,906.10x = 10,533,918,575,706.26 - Step 5: Solve for x
x = 10,533,918,575,706.26/2,657,906.10 - Step 6: Final answer
x = 3,963,239.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.