Finding the Fourth Proportional to 13,556,485.76, 18,701,032.77 and 8,656,556.00
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Solution
The fourth proportional to 13,556,485.76, 18,701,032.77 and 8,656,556.00 is: 11,941,630.03
Step by Step Solution
- Step 1: Write the proportion equation
13,556,485.76 : 18,701,032.77 = 8,656,556.00 : x - Step 2: Convert to fraction form
13,556,485.76/18,701,032.77 = 8,656,556.00/x - Step 3: Cross multiply
13,556,485.76x = 18,701,032.77 × 8,656,556.00 - Step 4: Simplify right side
13,556,485.76x = 161,886,537,337,834.94 - Step 5: Solve for x
x = 161,886,537,337,834.94/13,556,485.76 - Step 6: Final answer
x = 11,941,630.03
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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.