Finding the Fourth Proportional to 121,287,122.40, 181,930,683.60 and 35,028,343.20
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Solution
The fourth proportional to 121,287,122.40, 181,930,683.60 and 35,028,343.20 is: 52,542,514.80
Step by Step Solution
- Step 1: Write the proportion equation
121,287,122.40 : 181,930,683.60 = 35,028,343.20 : x - Step 2: Convert to fraction form
121,287,122.40/181,930,683.60 = 35,028,343.20/x - Step 3: Cross multiply
121,287,122.40x = 181,930,683.60 × 35,028,343.20 - Step 4: Simplify right side
121,287,122.40x = 6,372,730,423,751,412 - Step 5: Solve for x
x = 6,372,730,423,751,412/121,287,122.40 - Step 6: Final answer
x = 52,542,514.80
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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.