Finding the Fourth Proportional to 16,217,956.80, 22,380,789.11 and 8,875,785.65
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Solution
The fourth proportional to 16,217,956.80, 22,380,789.11 and 8,875,785.65 is: 12,248,588.96
Step by Step Solution
- Step 1: Write the proportion equation
16,217,956.80 : 22,380,789.11 = 8,875,785.65 : x - Step 2: Convert to fraction form
16,217,956.80/22,380,789.11 = 8,875,785.65/x - Step 3: Cross multiply
16,217,956.80x = 22,380,789.11 × 8,875,785.65 - Step 4: Simplify right side
16,217,956.80x = 198,647,086,661,931.41 - Step 5: Solve for x
x = 198,647,086,661,931.41/16,217,956.80 - Step 6: Final answer
x = 12,248,588.96
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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.