Finding the Fourth Proportional to 13,104,090.30, 19,656,135.45 and 12,852,147.90
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Solution
The fourth proportional to 13,104,090.30, 19,656,135.45 and 12,852,147.90 is: 19,278,221.85
Step by Step Solution
- Step 1: Write the proportion equation
13,104,090.30 : 19,656,135.45 = 12,852,147.90 : x - Step 2: Convert to fraction form
13,104,090.30/19,656,135.45 = 12,852,147.90/x - Step 3: Cross multiply
13,104,090.30x = 19,656,135.45 × 12,852,147.90 - Step 4: Simplify right side
13,104,090.30x = 252,623,559,945,833.06 - Step 5: Solve for x
x = 252,623,559,945,833.06/13,104,090.30 - Step 6: Final answer
x = 19,278,221.85
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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.