Finding the Fourth Proportional to 13,853,933.98, 19,115,256.80 and 8,271,093.94
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Solution
The fourth proportional to 13,853,933.98, 19,115,256.80 and 8,271,093.94 is: 11,412,215.83
Step by Step Solution
- Step 1: Write the proportion equation
13,853,933.98 : 19,115,256.80 = 8,271,093.94 : x - Step 2: Convert to fraction form
13,853,933.98/19,115,256.80 = 8,271,093.94/x - Step 3: Cross multiply
13,853,933.98x = 19,115,256.80 × 8,271,093.94 - Step 4: Simplify right side
13,853,933.98x = 158,104,084,680,023.81 - Step 5: Solve for x
x = 158,104,084,680,023.81/13,853,933.98 - Step 6: Final answer
x = 11,412,215.83
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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.