Finding the Fourth Proportional to 207,994,389.44, 287,028,728.35 and 115,172,904.38
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Solution
The fourth proportional to 207,994,389.44, 287,028,728.35 and 115,172,904.38 is: 158,936,653.88
Step by Step Solution
- Step 1: Write the proportion equation
207,994,389.44 : 287,028,728.35 = 115,172,904.38 : x - Step 2: Convert to fraction form
207,994,389.44/287,028,728.35 = 115,172,904.38/x - Step 3: Cross multiply
207,994,389.44x = 287,028,728.35 × 115,172,904.38 - Step 4: Simplify right side
207,994,389.44x = 33,057,932,282,844,472 - Step 5: Solve for x
x = 33,057,932,282,844,472/207,994,389.44 - Step 6: Final answer
x = 158,936,653.88
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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.