Finding the Fourth Proportional to 18,201,659.70, 27,302,489.55 and 15,331,878.30
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Solution
The fourth proportional to 18,201,659.70, 27,302,489.55 and 15,331,878.30 is: 22,997,817.45
Step by Step Solution
- Step 1: Write the proportion equation
18,201,659.70 : 27,302,489.55 = 15,331,878.30 : x - Step 2: Convert to fraction form
18,201,659.70/27,302,489.55 = 15,331,878.30/x - Step 3: Cross multiply
18,201,659.70x = 27,302,489.55 × 15,331,878.30 - Step 4: Simplify right side
18,201,659.70x = 418,598,447,067,621.81 - Step 5: Solve for x
x = 418,598,447,067,621.81/18,201,659.70 - Step 6: Final answer
x = 22,997,817.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.