Finding the Fourth Proportional to 21,708,124.18, 32,555,272.44 and 7,131,660.14
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Solution
The fourth proportional to 21,708,124.18, 32,555,272.44 and 7,131,660.14 is: 10,695,218.84
Step by Step Solution
- Step 1: Write the proportion equation
21,708,124.18 : 32,555,272.44 = 7,131,660.14 : x - Step 2: Convert to fraction form
21,708,124.18/32,555,272.44 = 7,131,660.14/x - Step 3: Cross multiply
21,708,124.18x = 32,555,272.44 × 7,131,660.14 - Step 4: Simplify right side
21,708,124.18x = 232,173,138,732,197.03 - Step 5: Solve for x
x = 232,173,138,732,197.03/21,708,124.18 - Step 6: Final answer
x = 10,695,218.84
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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.