Finding the Fourth Proportional to 15,112,617.68, 20,855,180.96 and 8,497,211.95
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Solution
The fourth proportional to 15,112,617.68, 20,855,180.96 and 8,497,211.95 is: 11,726,022.36
Step by Step Solution
- Step 1: Write the proportion equation
15,112,617.68 : 20,855,180.96 = 8,497,211.95 : x - Step 2: Convert to fraction form
15,112,617.68/20,855,180.96 = 8,497,211.95/x - Step 3: Cross multiply
15,112,617.68x = 20,855,180.96 × 8,497,211.95 - Step 4: Simplify right side
15,112,617.68x = 177,210,892,778,100.44 - Step 5: Solve for x
x = 177,210,892,778,100.44/15,112,617.68 - Step 6: Final answer
x = 11,726,022.36
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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.