Finding the Fourth Proportional to 18,290,652.93, 25,248,202.08 and 13,720,270.05
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Solution
The fourth proportional to 18,290,652.93, 25,248,202.08 and 13,720,270.05 is: 18,939,299.33
Step by Step Solution
- Step 1: Write the proportion equation
18,290,652.93 : 25,248,202.08 = 13,720,270.05 : x - Step 2: Convert to fraction form
18,290,652.93/25,248,202.08 = 13,720,270.05/x - Step 3: Cross multiply
18,290,652.93x = 25,248,202.08 × 13,720,270.05 - Step 4: Simplify right side
18,290,652.93x = 346,412,150,814,571.69 - Step 5: Solve for x
x = 346,412,150,814,571.69/18,290,652.93 - Step 6: Final answer
x = 18,939,299.33
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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.