Finding the Fourth Proportional to 11,867,117.76, 16,376,554.08 and 6,434,493.12
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Solution
The fourth proportional to 11,867,117.76, 16,376,554.08 and 6,434,493.12 is: 8,879,563.40
Step by Step Solution
- Step 1: Write the proportion equation
11,867,117.76 : 16,376,554.08 = 6,434,493.12 : x - Step 2: Convert to fraction form
11,867,117.76/16,376,554.08 = 6,434,493.12/x - Step 3: Cross multiply
11,867,117.76x = 16,376,554.08 × 6,434,493.12 - Step 4: Simplify right side
11,867,117.76x = 105,374,824,557,067.94 - Step 5: Solve for x
x = 105,374,824,557,067.94/11,867,117.76 - Step 6: Final answer
x = 8,879,563.40
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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.