Finding the Fourth Proportional to 13,207,531.70, 19,811,297.55 and 11,317,963.70
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Solution
The fourth proportional to 13,207,531.70, 19,811,297.55 and 11,317,963.70 is: 16,976,945.55
Step by Step Solution
- Step 1: Write the proportion equation
13,207,531.70 : 19,811,297.55 = 11,317,963.70 : x - Step 2: Convert to fraction form
13,207,531.70/19,811,297.55 = 11,317,963.70/x - Step 3: Cross multiply
13,207,531.70x = 19,811,297.55 × 11,317,963.70 - Step 4: Simplify right side
13,207,531.70x = 224,223,546,520,798.94 - Step 5: Solve for x
x = 224,223,546,520,798.94/13,207,531.70 - Step 6: Final answer
x = 16,976,945.55
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1.5x scale
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.