Finding the Fourth Proportional to 5,218,607.79, 7,201,737.14 and 2,895,542.37
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Solution
The fourth proportional to 5,218,607.79, 7,201,737.14 and 2,895,542.37 is: 3,995,880.87
Step by Step Solution
- Step 1: Write the proportion equation
5,218,607.79 : 7,201,737.14 = 2,895,542.37 : x - Step 2: Convert to fraction form
5,218,607.79/7,201,737.14 = 2,895,542.37/x - Step 3: Cross multiply
5,218,607.79x = 7,201,737.14 × 2,895,542.37 - Step 4: Simplify right side
5,218,607.79x = 20,852,935,011,994.91 - Step 5: Solve for x
x = 20,852,935,011,994.91/5,218,607.79 - Step 6: Final answer
x = 3,995,880.87
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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.