Finding the Fourth Proportional to 18,536,415.20, 27,806,696.40 and 5,756,818.40
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Solution
The fourth proportional to 18,536,415.20, 27,806,696.40 and 5,756,818.40 is: 8,635,871.59
Step by Step Solution
- Step 1: Write the proportion equation
18,536,415.20 : 27,806,696.40 = 5,756,818.40 : x - Step 2: Convert to fraction form
18,536,415.20/27,806,696.40 = 5,756,818.40/x - Step 3: Cross multiply
18,536,415.20x = 27,806,696.40 × 5,756,818.40 - Step 4: Simplify right side
18,536,415.20x = 160,078,101,478,733.75 - Step 5: Solve for x
x = 160,078,101,478,733.75/18,536,415.20 - Step 6: Final answer
x = 8,635,871.59
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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.