Finding the Fourth Proportional to 3,775,585.62, 5,209,919.73 and 2,121,470.04
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Solution
The fourth proportional to 3,775,585.62, 5,209,919.73 and 2,121,470.04 is: 2,927,410.40
Step by Step Solution
- Step 1: Write the proportion equation
3,775,585.62 : 5,209,919.73 = 2,121,470.04 : x - Step 2: Convert to fraction form
3,775,585.62/5,209,919.73 = 2,121,470.04/x - Step 3: Cross multiply
3,775,585.62x = 5,209,919.73 × 2,121,470.04 - Step 4: Simplify right side
3,775,585.62x = 11,052,688,617,999.89 - Step 5: Solve for x
x = 11,052,688,617,999.89/3,775,585.62 - Step 6: Final answer
x = 2,927,410.40
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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.