Finding the Fourth Proportional to 147,612,270.38, 203,704,925.34 and 79,717,381.88
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Solution
The fourth proportional to 147,612,270.38, 203,704,925.34 and 79,717,381.88 is: 110,009,982.79
Step by Step Solution
- Step 1: Write the proportion equation
147,612,270.38 : 203,704,925.34 = 79,717,381.88 : x - Step 2: Convert to fraction form
147,612,270.38/203,704,925.34 = 79,717,381.88/x - Step 3: Cross multiply
147,612,270.38x = 203,704,925.34 × 79,717,381.88 - Step 4: Simplify right side
147,612,270.38x = 16,238,823,324,165,668 - Step 5: Solve for x
x = 16,238,823,324,165,668/147,612,270.38 - Step 6: Final answer
x = 110,009,982.79
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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.