Finding the Fourth Proportional to 18,638,126.98, 25,720,370.07 and 10,265,335.99
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Solution
The fourth proportional to 18,638,126.98, 25,720,370.07 and 10,265,335.99 is: 14,166,028.63
Step by Step Solution
- Step 1: Write the proportion equation
18,638,126.98 : 25,720,370.07 = 10,265,335.99 : x - Step 2: Convert to fraction form
18,638,126.98/25,720,370.07 = 10,265,335.99/x - Step 3: Cross multiply
18,638,126.98x = 25,720,370.07 × 10,265,335.99 - Step 4: Simplify right side
18,638,126.98x = 264,028,240,452,893.91 - Step 5: Solve for x
x = 264,028,240,452,893.91/18,638,126.98 - Step 6: Final answer
x = 14,166,028.63
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1.5x scale
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.