Finding the Fourth Proportional to 21,227,124.20, 29,290,471.98 and 11,933,423.96
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Solution
The fourth proportional to 21,227,124.20, 29,290,471.98 and 11,933,423.96 is: 16,466,461.35
Step by Step Solution
- Step 1: Write the proportion equation
21,227,124.20 : 29,290,471.98 = 11,933,423.96 : x - Step 2: Convert to fraction form
21,227,124.20/29,290,471.98 = 11,933,423.96/x - Step 3: Cross multiply
21,227,124.20x = 29,290,471.98 × 11,933,423.96 - Step 4: Simplify right side
21,227,124.20x = 349,535,620,125,840.69 - Step 5: Solve for x
x = 349,535,620,125,840.69/21,227,124.20 - Step 6: Final answer
x = 16,466,461.35
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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.