Finding the Fourth Proportional to 18,139,615.97, 27,209,254.55 and 7,354,352.97
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Solution
The fourth proportional to 18,139,615.97, 27,209,254.55 and 7,354,352.97 is: 11,031,460.77
Step by Step Solution
- Step 1: Write the proportion equation
18,139,615.97 : 27,209,254.55 = 7,354,352.97 : x - Step 2: Convert to fraction form
18,139,615.97/27,209,254.55 = 7,354,352.97/x - Step 3: Cross multiply
18,139,615.97x = 27,209,254.55 × 7,354,352.97 - Step 4: Simplify right side
18,139,615.97x = 200,106,461,974,506.75 - Step 5: Solve for x
x = 200,106,461,974,506.75/18,139,615.97 - Step 6: Final answer
x = 11,031,460.77
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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.