Finding the Fourth Proportional to 20,855,341.08, 28,782,074.46 and 11,565,820.44
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Solution
The fourth proportional to 20,855,341.08, 28,782,074.46 and 11,565,820.44 is: 15,961,777.07
Step by Step Solution
- Step 1: Write the proportion equation
20,855,341.08 : 28,782,074.46 = 11,565,820.44 : x - Step 2: Convert to fraction form
20,855,341.08/28,782,074.46 = 11,565,820.44/x - Step 3: Cross multiply
20,855,341.08x = 28,782,074.46 × 11,565,820.44 - Step 4: Simplify right side
20,855,341.08x = 332,888,305,095,069.94 - Step 5: Solve for x
x = 332,888,305,095,069.94/20,855,341.08 - Step 6: Final answer
x = 15,961,777.07
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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.