Finding the Fourth Proportional to 154,595,892.80, 213,344,982.24 and 84,984,207.68
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Solution
The fourth proportional to 154,595,892.80, 213,344,982.24 and 84,984,207.68 is: 117,279,663.45
Step by Step Solution
- Step 1: Write the proportion equation
154,595,892.80 : 213,344,982.24 = 84,984,207.68 : x - Step 2: Convert to fraction form
154,595,892.80/213,344,982.24 = 84,984,207.68/x - Step 3: Cross multiply
154,595,892.80x = 213,344,982.24 × 84,984,207.68 - Step 4: Simplify right side
154,595,892.80x = 18,130,954,278,170,072 - Step 5: Solve for x
x = 18,130,954,278,170,072/154,595,892.80 - Step 6: Final answer
x = 117,279,663.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.