Finding the Fourth Proportional to 3,739,551.18, 5,160,990.68 and 2,170,028.76
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Solution
The fourth proportional to 3,739,551.18, 5,160,990.68 and 2,170,028.76 is: 2,994,877.64
Step by Step Solution
- Step 1: Write the proportion equation
3,739,551.18 : 5,160,990.68 = 2,170,028.76 : x - Step 2: Convert to fraction form
3,739,551.18/5,160,990.68 = 2,170,028.76/x - Step 3: Cross multiply
3,739,551.18x = 5,160,990.68 × 2,170,028.76 - Step 4: Simplify right side
3,739,551.18x = 11,199,498,224,862.69 - Step 5: Solve for x
x = 11,199,498,224,862.69/3,739,551.18 - Step 6: Final answer
x = 2,994,877.64
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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.