Finding the Fourth Proportional to 47,968,529.81, 71,952,806.97 and 13,430,019.95
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Solution
The fourth proportional to 47,968,529.81, 71,952,806.97 and 13,430,019.95 is: 20,145,033.35
Step by Step Solution
- Step 1: Write the proportion equation
47,968,529.81 : 71,952,806.97 = 13,430,019.95 : x - Step 2: Convert to fraction form
47,968,529.81/71,952,806.97 = 13,430,019.95/x - Step 3: Cross multiply
47,968,529.81x = 71,952,806.97 × 13,430,019.95 - Step 4: Simplify right side
47,968,529.81x = 966,327,632,705,835 - Step 5: Solve for x
x = 966,327,632,705,835/47,968,529.81 - Step 6: Final answer
x = 20,145,033.35
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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.