Finding the Fourth Proportional to 217,224,347.40, 326,214,434.70 and 115,187,675.40
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Solution
The fourth proportional to 217,224,347.40, 326,214,434.70 and 115,187,675.40 is: 172,981,909.55
Step by Step Solution
- Step 1: Write the proportion equation
217,224,347.40 : 326,214,434.70 = 115,187,675.40 : x - Step 2: Convert to fraction form
217,224,347.40/326,214,434.70 = 115,187,675.40/x - Step 3: Cross multiply
217,224,347.40x = 326,214,434.70 × 115,187,675.40 - Step 4: Simplify right side
217,224,347.40x = 37,575,882,415,018,096 - Step 5: Solve for x
x = 37,575,882,415,018,096/217,224,347.40 - Step 6: Final answer
x = 172,981,909.55
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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.