Finding the Fourth Proportional to 11,890,076.32, 16,408,336.81 and 6,995,482.84
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Solution
The fourth proportional to 11,890,076.32, 16,408,336.81 and 6,995,482.84 is: 9,653,784.84
Step by Step Solution
- Step 1: Write the proportion equation
11,890,076.32 : 16,408,336.81 = 6,995,482.84 : x - Step 2: Convert to fraction form
11,890,076.32/16,408,336.81 = 6,995,482.84/x - Step 3: Cross multiply
11,890,076.32x = 16,408,336.81 × 6,995,482.84 - Step 4: Simplify right side
11,890,076.32x = 114,784,238,505,253.66 - Step 5: Solve for x
x = 114,784,238,505,253.66/11,890,076.32 - Step 6: Final answer
x = 9,653,784.84
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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.