Finding the Fourth Proportional to 7,570,076.80, 11,355,115.20 and 4,882,691.20
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Solution
The fourth proportional to 7,570,076.80, 11,355,115.20 and 4,882,691.20 is: 7,324,036.80
Step by Step Solution
- Step 1: Write the proportion equation
7,570,076.80 : 11,355,115.20 = 4,882,691.20 : x - Step 2: Convert to fraction form
7,570,076.80/11,355,115.20 = 4,882,691.20/x - Step 3: Cross multiply
7,570,076.80x = 11,355,115.20 × 4,882,691.20 - Step 4: Simplify right side
7,570,076.80x = 55,443,521,062,026.24 - Step 5: Solve for x
x = 55,443,521,062,026.24/7,570,076.80 - Step 6: Final answer
x = 7,324,036.80
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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.