Finding the Fourth Proportional to 35,138,897.10, 48,492,173.16 and 20,245,990.23
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Solution
The fourth proportional to 35,138,897.10, 48,492,173.16 and 20,245,990.23 is: 27,939,751.82
Step by Step Solution
- Step 1: Write the proportion equation
35,138,897.10 : 48,492,173.16 = 20,245,990.23 : x - Step 2: Convert to fraction form
35,138,897.10/48,492,173.16 = 20,245,990.23/x - Step 3: Cross multiply
35,138,897.10x = 48,492,173.16 × 20,245,990.23 - Step 4: Simplify right side
35,138,897.10x = 981,772,064,028,828.12 - Step 5: Solve for x
x = 981,772,064,028,828.12/35,138,897.10 - Step 6: Final answer
x = 27,939,751.82
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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.