Finding the Fourth Proportional to 14,601,686.72, 20,149,820.11 and 8,406,528.08
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Solution
The fourth proportional to 14,601,686.72, 20,149,820.11 and 8,406,528.08 is: 11,600,716.53
Step by Step Solution
- Step 1: Write the proportion equation
14,601,686.72 : 20,149,820.11 = 8,406,528.08 : x - Step 2: Convert to fraction form
14,601,686.72/20,149,820.11 = 8,406,528.08/x - Step 3: Cross multiply
14,601,686.72x = 20,149,820.11 × 8,406,528.08 - Step 4: Simplify right side
14,601,686.72x = 169,390,028,561,663.69 - Step 5: Solve for x
x = 169,390,028,561,663.69/14,601,686.72 - Step 6: Final answer
x = 11,600,716.53
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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.