Finding the Fourth Proportional to 129,512,125.60, 194,243,305.20 and 38,638,679.20
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Solution
The fourth proportional to 129,512,125.60, 194,243,305.20 and 38,638,679.20 is: 57,950,595.14
Step by Step Solution
- Step 1: Write the proportion equation
129,512,125.60 : 194,243,305.20 = 38,638,679.20 : x - Step 2: Convert to fraction form
129,512,125.60/194,243,305.20 = 38,638,679.20/x - Step 3: Cross multiply
129,512,125.60x = 194,243,305.20 × 38,638,679.20 - Step 4: Simplify right side
129,512,125.60x = 7,505,304,756,370,492 - Step 5: Solve for x
x = 7,505,304,756,370,492/129,512,125.60 - Step 6: Final answer
x = 57,950,595.14
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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.