Finding the Fourth Proportional to 8,811,128.19, 13,219,398.21 and 4,205,990.82
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Solution
The fourth proportional to 8,811,128.19, 13,219,398.21 and 4,205,990.82 is: 6,310,277.90
Step by Step Solution
- Step 1: Write the proportion equation
8,811,128.19 : 13,219,398.21 = 4,205,990.82 : x - Step 2: Convert to fraction form
8,811,128.19/13,219,398.21 = 4,205,990.82/x - Step 3: Cross multiply
8,811,128.19x = 13,219,398.21 × 4,205,990.82 - Step 4: Simplify right side
8,811,128.19x = 55,600,667,496,154.48 - Step 5: Solve for x
x = 55,600,667,496,154.48/8,811,128.19 - Step 6: Final answer
x = 6,310,277.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.