Finding the Fourth Proportional to 38,843,276.90, 53,595,720.21 and 22,320,209.22
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Solution
The fourth proportional to 38,843,276.90, 53,595,720.21 and 22,320,209.22 is: 30,797,290.65
Step by Step Solution
- Step 1: Write the proportion equation
38,843,276.90 : 53,595,720.21 = 22,320,209.22 : x - Step 2: Convert to fraction form
38,843,276.90/53,595,720.21 = 22,320,209.22/x - Step 3: Cross multiply
38,843,276.90x = 53,595,720.21 × 22,320,209.22 - Step 4: Simplify right side
38,843,276.90x = 1,196,267,688,383,782.25 - Step 5: Solve for x
x = 1,196,267,688,383,782.25/38,843,276.90 - Step 6: Final answer
x = 30,797,290.65
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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.