Finding the Fourth Proportional to 129,512,176.60, 194,243,381.70 and 38,638,730.20
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Solution
The fourth proportional to 129,512,176.60, 194,243,381.70 and 38,638,730.20 is: 57,950,671.63
Step by Step Solution
- Step 1: Write the proportion equation
129,512,176.60 : 194,243,381.70 = 38,638,730.20 : x - Step 2: Convert to fraction form
129,512,176.60/194,243,381.70 = 38,638,730.20/x - Step 3: Cross multiply
129,512,176.60x = 194,243,381.70 × 38,638,730.20 - Step 4: Simplify right side
129,512,176.60x = 7,505,317,618,641,917 - Step 5: Solve for x
x = 7,505,317,618,641,917/129,512,176.60 - Step 6: Final answer
x = 57,950,671.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.