Finding the Fourth Proportional to 16,221,508.74, 22,385,715.66 and 8,879,810.90
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Solution
The fourth proportional to 16,221,508.74, 22,385,715.66 and 8,879,810.90 is: 12,254,157.43
Step by Step Solution
- Step 1: Write the proportion equation
16,221,508.74 : 22,385,715.66 = 8,879,810.90 : x - Step 2: Convert to fraction form
16,221,508.74/22,385,715.66 = 8,879,810.90/x - Step 3: Cross multiply
16,221,508.74x = 22,385,715.66 × 8,879,810.90 - Step 4: Simplify right side
16,221,508.74x = 198,780,921,810,040.09 - Step 5: Solve for x
x = 198,780,921,810,040.09/16,221,508.74 - Step 6: Final answer
x = 12,254,157.43
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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.