Finding the Fourth Proportional to 20,725,917.63, 31,024,180.35 and 15,267,165.63
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Solution
The fourth proportional to 20,725,917.63, 31,024,180.35 and 15,267,165.63 is: 22,853,091.88
Step by Step Solution
- Step 1: Write the proportion equation
20,725,917.63 : 31,024,180.35 = 15,267,165.63 : x - Step 2: Convert to fraction form
20,725,917.63/31,024,180.35 = 15,267,165.63/x - Step 3: Cross multiply
20,725,917.63x = 31,024,180.35 × 15,267,165.63 - Step 4: Simplify right side
20,725,917.63x = 473,651,299,938,441.44 - Step 5: Solve for x
x = 473,651,299,938,441.44/20,725,917.63 - Step 6: Final answer
x = 22,853,091.88
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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.