Finding the Fourth Proportional to 15,364,818.76, 21,202,878.42 and 8,489,152.84
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Solution
The fourth proportional to 15,364,818.76, 21,202,878.42 and 8,489,152.84 is: 11,714,715.18
Step by Step Solution
- Step 1: Write the proportion equation
15,364,818.76 : 21,202,878.42 = 8,489,152.84 : x - Step 2: Convert to fraction form
15,364,818.76/21,202,878.42 = 8,489,152.84/x - Step 3: Cross multiply
15,364,818.76x = 21,202,878.42 × 8,489,152.84 - Step 4: Simplify right side
15,364,818.76x = 179,994,475,555,317.72 - Step 5: Solve for x
x = 179,994,475,555,317.72/15,364,818.76 - Step 6: Final answer
x = 11,714,715.18
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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.