Finding the Fourth Proportional to 71,542,655.20, 107,313,982.80 and 17,689,967.20
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Solution
The fourth proportional to 71,542,655.20, 107,313,982.80 and 17,689,967.20 is: 26,534,950.80
Step by Step Solution
- Step 1: Write the proportion equation
71,542,655.20 : 107,313,982.80 = 17,689,967.20 : x - Step 2: Convert to fraction form
71,542,655.20/107,313,982.80 = 17,689,967.20/x - Step 3: Cross multiply
71,542,655.20x = 107,313,982.80 × 17,689,967.20 - Step 4: Simplify right side
71,542,655.20x = 1,898,380,835,833,364 - Step 5: Solve for x
x = 1,898,380,835,833,364/71,542,655.20 - Step 6: Final answer
x = 26,534,950.80
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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.