Finding the Fourth Proportional to 17,715,281.20, 26,572,921.80 and 13,432,260.40
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Solution
The fourth proportional to 17,715,281.20, 26,572,921.80 and 13,432,260.40 is: 20,148,390.60
Step by Step Solution
- Step 1: Write the proportion equation
17,715,281.20 : 26,572,921.80 = 13,432,260.40 : x - Step 2: Convert to fraction form
17,715,281.20/26,572,921.80 = 13,432,260.40/x - Step 3: Cross multiply
17,715,281.20x = 26,572,921.80 × 13,432,260.40 - Step 4: Simplify right side
17,715,281.20x = 356,934,405,206,436.75 - Step 5: Solve for x
x = 356,934,405,206,436.75/17,715,281.20 - Step 6: Final answer
x = 20,148,390.60
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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.