Finding the Fourth Proportional to 16,286,508.78, 22,484,107.86 and 12,557,194.66
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Solution
The fourth proportional to 16,286,508.78, 22,484,107.86 and 12,557,194.66 is: 17,335,656.34
Step by Step Solution
- Step 1: Write the proportion equation
16,286,508.78 : 22,484,107.86 = 12,557,194.66 : x - Step 2: Convert to fraction form
16,286,508.78/22,484,107.86 = 12,557,194.66/x - Step 3: Cross multiply
16,286,508.78x = 22,484,107.86 × 12,557,194.66 - Step 4: Simplify right side
16,286,508.78x = 282,337,319,154,456 - Step 5: Solve for x
x = 282,337,319,154,456/16,286,508.78 - Step 6: Final answer
x = 17,335,656.34
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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.