Finding the Fourth Proportional to 21,102,714.54, 29,124,804.58 and 12,160,085.02
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Solution
The fourth proportional to 21,102,714.54, 29,124,804.58 and 12,160,085.02 is: 16,782,679.75
Step by Step Solution
- Step 1: Write the proportion equation
21,102,714.54 : 29,124,804.58 = 12,160,085.02 : x - Step 2: Convert to fraction form
21,102,714.54/29,124,804.58 = 12,160,085.02/x - Step 3: Cross multiply
21,102,714.54x = 29,124,804.58 × 12,160,085.02 - Step 4: Simplify right side
21,102,714.54x = 354,160,099,883,685.38 - Step 5: Solve for x
x = 354,160,099,883,685.38/21,102,714.54 - Step 6: Final answer
x = 16,782,679.75
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1.5x scale
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.