Finding the Fourth Proportional to 839,729,917.24, 1,259,590,390.62 and 217,944,695.14
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Solution
The fourth proportional to 839,729,917.24, 1,259,590,390.62 and 217,944,695.14 is: 326,915,878.60
Step by Step Solution
- Step 1: Write the proportion equation
839,729,917.24 : 1,259,590,390.62 = 217,944,695.14 : x - Step 2: Convert to fraction form
839,729,917.24/1,259,590,390.62 = 217,944,695.14/x - Step 3: Cross multiply
839,729,917.24x = 1,259,590,390.62 × 217,944,695.14 - Step 4: Simplify right side
839,729,917.24x = 274,521,043,684,949,376 - Step 5: Solve for x
x = 274,521,043,684,949,376/839,729,917.24 - Step 6: Final answer
x = 326,915,878.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.