Finding the Fourth Proportional to 11,242,570.97, 15,528,581.58 and 8,140,182.68
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Solution
The fourth proportional to 11,242,570.97, 15,528,581.58 and 8,140,182.68 is: 11,243,468.35
Step by Step Solution
- Step 1: Write the proportion equation
11,242,570.97 : 15,528,581.58 = 8,140,182.68 : x - Step 2: Convert to fraction form
11,242,570.97/15,528,581.58 = 8,140,182.68/x - Step 3: Cross multiply
11,242,570.97x = 15,528,581.58 × 8,140,182.68 - Step 4: Simplify right side
11,242,570.97x = 126,405,490,891,830.17 - Step 5: Solve for x
x = 126,405,490,891,830.17/11,242,570.97 - Step 6: Final answer
x = 11,243,468.35
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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.