Finding the Fourth Proportional to 2,090,203.20, 3,130,639.20 and 1,613,145.60
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Solution
The fourth proportional to 2,090,203.20, 3,130,639.20 and 1,613,145.60 is: 2,416,117.65
Step by Step Solution
- Step 1: Write the proportion equation
2,090,203.20 : 3,130,639.20 = 1,613,145.60 : x - Step 2: Convert to fraction form
2,090,203.20/3,130,639.20 = 1,613,145.60/x - Step 3: Cross multiply
2,090,203.20x = 3,130,639.20 × 1,613,145.60 - Step 4: Simplify right side
2,090,203.20x = 5,050,176,850,667.52 - Step 5: Solve for x
x = 5,050,176,850,667.52/2,090,203.20 - Step 6: Final answer
x = 2,416,117.65
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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.