Finding the Fourth Proportional to 7,939,725.12, 11,909,659.50 and 2,259,946.80
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Solution
The fourth proportional to 7,939,725.12, 11,909,659.50 and 2,259,946.80 is: 3,389,940.64
Step by Step Solution
- Step 1: Write the proportion equation
7,939,725.12 : 11,909,659.50 = 2,259,946.80 : x - Step 2: Convert to fraction form
7,939,725.12/11,909,659.50 = 2,259,946.80/x - Step 3: Cross multiply
7,939,725.12x = 11,909,659.50 × 2,259,946.80 - Step 4: Simplify right side
7,939,725.12x = 26,915,196,876,114.60 - Step 5: Solve for x
x = 26,915,196,876,114.60/7,939,725.12 - Step 6: Final answer
x = 3,389,940.64
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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.