Finding the Fourth Proportional to 11,771,872.16, 16,245,507.28 and 6,615,703.84
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Solution
The fourth proportional to 11,771,872.16, 16,245,507.28 and 6,615,703.84 is: 9,129,853.22
Step by Step Solution
- Step 1: Write the proportion equation
11,771,872.16 : 16,245,507.28 = 6,615,703.84 : x - Step 2: Convert to fraction form
11,771,872.16/16,245,507.28 = 6,615,703.84/x - Step 3: Cross multiply
11,771,872.16x = 16,245,507.28 × 6,615,703.84 - Step 4: Simplify right side
11,771,872.16x = 107,475,464,895,043.95 - Step 5: Solve for x
x = 107,475,464,895,043.95/11,771,872.16 - Step 6: Final answer
x = 9,129,853.22
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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.