Finding the Fourth Proportional to 2,130,198.03, 2,939,696.70 and 1,163,356.80
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Solution
The fourth proportional to 2,130,198.03, 2,939,696.70 and 1,163,356.80 is: 1,605,445.17
Step by Step Solution
- Step 1: Write the proportion equation
2,130,198.03 : 2,939,696.70 = 1,163,356.80 : x - Step 2: Convert to fraction form
2,130,198.03/2,939,696.70 = 1,163,356.80/x - Step 3: Cross multiply
2,130,198.03x = 2,939,696.70 × 1,163,356.80 - Step 4: Simplify right side
2,130,198.03x = 3,419,916,145,882.56 - Step 5: Solve for x
x = 3,419,916,145,882.56/2,130,198.03 - Step 6: Final answer
x = 1,605,445.17
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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.