Finding the Fourth Proportional to 129,755,532.43, 179,043,372.36 and 78,807,858.75
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Solution
The fourth proportional to 129,755,532.43, 179,043,372.36 and 78,807,858.75 is: 108,743,145.94
Step by Step Solution
- Step 1: Write the proportion equation
129,755,532.43 : 179,043,372.36 = 78,807,858.75 : x - Step 2: Convert to fraction form
129,755,532.43/179,043,372.36 = 78,807,858.75/x - Step 3: Cross multiply
129,755,532.43x = 179,043,372.36 × 78,807,858.75 - Step 4: Simplify right side
129,755,532.43x = 14,110,024,800,037,476 - Step 5: Solve for x
x = 14,110,024,800,037,476/129,755,532.43 - Step 6: Final answer
x = 108,743,145.94
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.