Finding the Fourth Proportional to 3,138,306.17, 4,317,272.03 and 2,749,370.09
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Solution
The fourth proportional to 3,138,306.17, 4,317,272.03 and 2,749,370.09 is: 3,782,224.53
Step by Step Solution
- Step 1: Write the proportion equation
3,138,306.17 : 4,317,272.03 = 2,749,370.09 : x - Step 2: Convert to fraction form
3,138,306.17/4,317,272.03 = 2,749,370.09/x - Step 3: Cross multiply
3,138,306.17x = 4,317,272.03 × 2,749,370.09 - Step 4: Simplify right side
3,138,306.17x = 11,869,778,575,928.73 - Step 5: Solve for x
x = 11,869,778,575,928.73/3,138,306.17 - Step 6: Final answer
x = 3,782,224.53
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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.