Finding the Fourth Proportional to 145,672,213.60, 218,508,320.40 and 133,767,935.20
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Solution
The fourth proportional to 145,672,213.60, 218,508,320.40 and 133,767,935.20 is: 200,651,902.80
Step by Step Solution
- Step 1: Write the proportion equation
145,672,213.60 : 218,508,320.40 = 133,767,935.20 : x - Step 2: Convert to fraction form
145,672,213.60/218,508,320.40 = 133,767,935.20/x - Step 3: Cross multiply
145,672,213.60x = 218,508,320.40 × 133,767,935.20 - Step 4: Simplify right side
145,672,213.60x = 29,229,406,843,928,040 - Step 5: Solve for x
x = 29,229,406,843,928,040/145,672,213.60 - Step 6: Final answer
x = 200,651,902.80
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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.