Finding the Fourth Proportional to 16,286,512.78, 22,484,113.38 and 12,557,198.66
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Solution
The fourth proportional to 16,286,512.78, 22,484,113.38 and 12,557,198.66 is: 17,335,661.86
Step by Step Solution
- Step 1: Write the proportion equation
16,286,512.78 : 22,484,113.38 = 12,557,198.66 : x - Step 2: Convert to fraction form
16,286,512.78/22,484,113.38 = 12,557,198.66/x - Step 3: Cross multiply
16,286,512.78x = 22,484,113.38 × 12,557,198.66 - Step 4: Simplify right side
16,286,512.78x = 282,337,478,406,624.06 - Step 5: Solve for x
x = 282,337,478,406,624.06/16,286,512.78 - Step 6: Final answer
x = 17,335,661.86
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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.