Finding the Fourth Proportional to 5,259,109.20, 7,888,687.20 and 1,664,894.16
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Solution
The fourth proportional to 5,259,109.20, 7,888,687.20 and 1,664,894.16 is: 2,497,348.65
Step by Step Solution
- Step 1: Write the proportion equation
5,259,109.20 : 7,888,687.20 = 1,664,894.16 : x - Step 2: Convert to fraction form
5,259,109.20/7,888,687.20 = 1,664,894.16/x - Step 3: Cross multiply
5,259,109.20x = 7,888,687.20 × 1,664,894.16 - Step 4: Simplify right side
5,259,109.20x = 13,133,829,249,346.75 - Step 5: Solve for x
x = 13,133,829,249,346.75/5,259,109.20 - Step 6: Final answer
x = 2,497,348.65
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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.