Finding the Fourth Proportional to 12,129,966.36, 16,739,286.93 and 6,623,302.14
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Solution
The fourth proportional to 12,129,966.36, 16,739,286.93 and 6,623,302.14 is: 9,140,120.56
Step by Step Solution
- Step 1: Write the proportion equation
12,129,966.36 : 16,739,286.93 = 6,623,302.14 : x - Step 2: Convert to fraction form
12,129,966.36/16,739,286.93 = 6,623,302.14/x - Step 3: Cross multiply
12,129,966.36x = 16,739,286.93 × 6,623,302.14 - Step 4: Simplify right side
12,129,966.36x = 110,869,354,945,543.02 - Step 5: Solve for x
x = 110,869,354,945,543.02/12,129,966.36 - Step 6: Final answer
x = 9,140,120.56
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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.