Finding the Fourth Proportional to 2,631,742.85, 3,938,632.37 and 2,205,759.68
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Solution
The fourth proportional to 2,631,742.85, 3,938,632.37 and 2,205,759.68 is: 3,301,111.45
Step by Step Solution
- Step 1: Write the proportion equation
2,631,742.85 : 3,938,632.37 = 2,205,759.68 : x - Step 2: Convert to fraction form
2,631,742.85/3,938,632.37 = 2,205,759.68/x - Step 3: Cross multiply
2,631,742.85x = 3,938,632.37 × 2,205,759.68 - Step 4: Simplify right side
2,631,742.85x = 8,687,676,465,085.74 - Step 5: Solve for x
x = 8,687,676,465,085.74/2,631,742.85 - Step 6: Final answer
x = 3,301,111.45
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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.