Finding the Fourth Proportional to 3,999,686.85, 5,519,564.28 and 2,257,722.99
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Solution
The fourth proportional to 3,999,686.85, 5,519,564.28 and 2,257,722.99 is: 3,115,655.71
Step by Step Solution
- Step 1: Write the proportion equation
3,999,686.85 : 5,519,564.28 = 2,257,722.99 : x - Step 2: Convert to fraction form
3,999,686.85/5,519,564.28 = 2,257,722.99/x - Step 3: Cross multiply
3,999,686.85x = 5,519,564.28 × 2,257,722.99 - Step 4: Simplify right side
3,999,686.85x = 12,461,647,169,738.80 - Step 5: Solve for x
x = 12,461,647,169,738.80/3,999,686.85 - Step 6: Final answer
x = 3,115,655.71
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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.