Finding the Fourth Proportional to 20,232,295.20, 30,348,442.80 and 18,106,531.20
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Solution
The fourth proportional to 20,232,295.20, 30,348,442.80 and 18,106,531.20 is: 27,159,796.80
Step by Step Solution
- Step 1: Write the proportion equation
20,232,295.20 : 30,348,442.80 = 18,106,531.20 : x - Step 2: Convert to fraction form
20,232,295.20/30,348,442.80 = 18,106,531.20/x - Step 3: Cross multiply
20,232,295.20x = 30,348,442.80 × 18,106,531.20 - Step 4: Simplify right side
20,232,295.20x = 549,505,026,429,615.38 - Step 5: Solve for x
x = 549,505,026,429,615.38/20,232,295.20 - Step 6: Final answer
x = 27,159,796.80
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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.