Finding the Fourth Proportional to 13,512,186.35, 18,646,835.14 and 7,317,243.74
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Solution
The fourth proportional to 13,512,186.35, 18,646,835.14 and 7,317,243.74 is: 10,097,806.10
Step by Step Solution
- Step 1: Write the proportion equation
13,512,186.35 : 18,646,835.14 = 7,317,243.74 : x - Step 2: Convert to fraction form
13,512,186.35/18,646,835.14 = 7,317,243.74/x - Step 3: Cross multiply
13,512,186.35x = 18,646,835.14 × 7,317,243.74 - Step 4: Simplify right side
13,512,186.35x = 136,443,437,698,977.03 - Step 5: Solve for x
x = 136,443,437,698,977.03/13,512,186.35 - Step 6: Final answer
x = 10,097,806.10
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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.