Finding the Fourth Proportional to 274,617,486.10, 378,611,515.61 and 198,171,593.79
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Solution
The fourth proportional to 274,617,486.10, 378,611,515.61 and 198,171,593.79 is: 273,216,569.48
Step by Step Solution
- Step 1: Write the proportion equation
274,617,486.10 : 378,611,515.61 = 198,171,593.79 : x - Step 2: Convert to fraction form
274,617,486.10/378,611,515.61 = 198,171,593.79/x - Step 3: Cross multiply
274,617,486.10x = 378,611,515.61 × 198,171,593.79 - Step 4: Simplify right side
274,617,486.10x = 75,030,047,472,797,248 - Step 5: Solve for x
x = 75,030,047,472,797,248/274,617,486.10 - Step 6: Final answer
x = 273,216,569.48
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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.