Finding the Fourth Proportional to 5,189,209.12, 7,161,551.40 and 2,897,812.68
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Solution
The fourth proportional to 5,189,209.12, 7,161,551.40 and 2,897,812.68 is: 3,999,228.78
Step by Step Solution
- Step 1: Write the proportion equation
5,189,209.12 : 7,161,551.40 = 2,897,812.68 : x - Step 2: Convert to fraction form
5,189,209.12/7,161,551.40 = 2,897,812.68/x - Step 3: Cross multiply
5,189,209.12x = 7,161,551.40 × 2,897,812.68 - Step 4: Simplify right side
5,189,209.12x = 20,752,834,455,391.75 - Step 5: Solve for x
x = 20,752,834,455,391.75/5,189,209.12 - Step 6: Final answer
x = 3,999,228.78
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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.