Finding the Fourth Proportional to 42,079,628.40, 63,103,696.20 and 14,775,370.80
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Solution
The fourth proportional to 42,079,628.40, 63,103,696.20 and 14,775,370.80 is: 22,157,527.18
Step by Step Solution
- Step 1: Write the proportion equation
42,079,628.40 : 63,103,696.20 = 14,775,370.80 : x - Step 2: Convert to fraction form
42,079,628.40/63,103,696.20 = 14,775,370.80/x - Step 3: Cross multiply
42,079,628.40x = 63,103,696.20 × 14,775,370.80 - Step 4: Simplify right side
42,079,628.40x = 932,380,510,205,551 - Step 5: Solve for x
x = 932,380,510,205,551/42,079,628.40 - Step 6: Final answer
x = 22,157,527.18
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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.