Finding the Fourth Proportional to 7,169,134.88, 10,755,801.84 and 2,120,579.84
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Solution
The fourth proportional to 7,169,134.88, 10,755,801.84 and 2,120,579.84 is: 3,181,490.78
Step by Step Solution
- Step 1: Write the proportion equation
7,169,134.88 : 10,755,801.84 = 2,120,579.84 : x - Step 2: Convert to fraction form
7,169,134.88/10,755,801.84 = 2,120,579.84/x - Step 3: Cross multiply
7,169,134.88x = 10,755,801.84 × 2,120,579.84 - Step 4: Simplify right side
7,169,134.88x = 22,808,536,544,938.90 - Step 5: Solve for x
x = 22,808,536,544,938.90/7,169,134.88 - Step 6: Final answer
x = 3,181,490.78
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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.