Finding the Fourth Proportional to 220,412,309.28, 304,171,785 and 121,304,467.68
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Solution
The fourth proportional to 220,412,309.28, 304,171,785 and 121,304,467.68 is: 167,401,705.39
Step by Step Solution
- Step 1: Write the proportion equation
220,412,309.28 : 304,171,785 = 121,304,467.68 : x - Step 2: Convert to fraction form
220,412,309.28/304,171,785 = 121,304,467.68/x - Step 3: Cross multiply
220,412,309.28x = 304,171,785 × 121,304,467.68 - Step 4: Simplify right side
220,412,309.28x = 36,897,396,462,700,408 - Step 5: Solve for x
x = 36,897,396,462,700,408/220,412,309.28 - Step 6: Final answer
x = 167,401,705.39
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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.