Finding the Fourth Proportional to 5,312,903.97, 7,966,523.79 and 2,075,542.55
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Solution
The fourth proportional to 5,312,903.97, 7,966,523.79 and 2,075,542.55 is: 3,112,207.40
Step by Step Solution
- Step 1: Write the proportion equation
5,312,903.97 : 7,966,523.79 = 2,075,542.55 : x - Step 2: Convert to fraction form
5,312,903.97/7,966,523.79 = 2,075,542.55/x - Step 3: Cross multiply
5,312,903.97x = 7,966,523.79 × 2,075,542.55 - Step 4: Simplify right side
5,312,903.97x = 16,534,859,061,899.64 - Step 5: Solve for x
x = 16,534,859,061,899.64/5,312,903.97 - Step 6: Final answer
x = 3,112,207.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.