Finding the Fourth Proportional to 2,680,131.80, 4,020,197.70 and 1,618,448.60
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Solution
The fourth proportional to 2,680,131.80, 4,020,197.70 and 1,618,448.60 is: 2,427,672.90
Step by Step Solution
- Step 1: Write the proportion equation
2,680,131.80 : 4,020,197.70 = 1,618,448.60 : x - Step 2: Convert to fraction form
2,680,131.80/4,020,197.70 = 1,618,448.60/x - Step 3: Cross multiply
2,680,131.80x = 4,020,197.70 × 1,618,448.60 - Step 4: Simplify right side
2,680,131.80x = 6,506,483,339,288.22 - Step 5: Solve for x
x = 6,506,483,339,288.22/2,680,131.80 - Step 6: Final answer
x = 2,427,672.90
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1.5x scale
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.