Finding the Fourth Proportional to 71,075,489.56, 106,619,740.70 and 19,957,163.92
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Solution
The fourth proportional to 71,075,489.56, 106,619,740.70 and 19,957,163.92 is: 29,937,572.79
Step by Step Solution
- Step 1: Write the proportion equation
71,075,489.56 : 106,619,740.70 = 19,957,163.92 : x - Step 2: Convert to fraction form
71,075,489.56/106,619,740.70 = 19,957,163.92/x - Step 3: Cross multiply
71,075,489.56x = 106,619,740.70 × 19,957,163.92 - Step 4: Simplify right side
71,075,489.56x = 2,127,827,642,257,795.75 - Step 5: Solve for x
x = 2,127,827,642,257,795.75/71,075,489.56 - Step 6: Final answer
x = 29,937,572.79
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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.