Finding the Fourth Proportional to 18,139,617.05, 27,209,256.53 and 7,354,354.23
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Solution
The fourth proportional to 18,139,617.05, 27,209,256.53 and 7,354,354.23 is: 11,031,462.81
Step by Step Solution
- Step 1: Write the proportion equation
18,139,617.05 : 27,209,256.53 = 7,354,354.23 : x - Step 2: Convert to fraction form
18,139,617.05/27,209,256.53 = 7,354,354.23/x - Step 3: Cross multiply
18,139,617.05x = 27,209,256.53 × 7,354,354.23 - Step 4: Simplify right side
18,139,617.05x = 200,106,510,819,788.84 - Step 5: Solve for x
x = 200,106,510,819,788.84/18,139,617.05 - Step 6: Final answer
x = 11,031,462.81
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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.