Finding the Fourth Proportional to 103,626,861.84, 142,945,120.26 and 66,957,432.84
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Solution
The fourth proportional to 103,626,861.84, 142,945,120.26 and 66,957,432.84 is: 92,362,521.84
Step by Step Solution
- Step 1: Write the proportion equation
103,626,861.84 : 142,945,120.26 = 66,957,432.84 : x - Step 2: Convert to fraction form
103,626,861.84/142,945,120.26 = 66,957,432.84/x - Step 3: Cross multiply
103,626,861.84x = 142,945,120.26 × 66,957,432.84 - Step 4: Simplify right side
103,626,861.84x = 9,571,238,289,614,674 - Step 5: Solve for x
x = 9,571,238,289,614,674/103,626,861.84 - Step 6: Final answer
x = 92,362,521.84
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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.