Finding the Fourth Proportional to 102,538,129.20, 153,807,193.80 and 94,752,452.40
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Solution
The fourth proportional to 102,538,129.20, 153,807,193.80 and 94,752,452.40 is: 142,128,678.60
Step by Step Solution
- Step 1: Write the proportion equation
102,538,129.20 : 153,807,193.80 = 94,752,452.40 : x - Step 2: Convert to fraction form
102,538,129.20/153,807,193.80 = 94,752,452.40/x - Step 3: Cross multiply
102,538,129.20x = 153,807,193.80 × 94,752,452.40 - Step 4: Simplify right side
102,538,129.20x = 14,573,608,809,312,078 - Step 5: Solve for x
x = 14,573,608,809,312,078/102,538,129.20 - Step 6: Final answer
x = 142,128,678.60
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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.