Finding the Fourth Proportional to 306,440,718.12, 422,777,686.44 and 235,897,903.08
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Solution
The fourth proportional to 306,440,718.12, 422,777,686.44 and 235,897,903.08 is: 325,454,039.89
Step by Step Solution
- Step 1: Write the proportion equation
306,440,718.12 : 422,777,686.44 = 235,897,903.08 : x - Step 2: Convert to fraction form
306,440,718.12/422,777,686.44 = 235,897,903.08/x - Step 3: Cross multiply
306,440,718.12x = 422,777,686.44 × 235,897,903.08 - Step 4: Simplify right side
306,440,718.12x = 99,732,369,700,209,760 - Step 5: Solve for x
x = 99,732,369,700,209,760/306,440,718.12 - Step 6: Final answer
x = 325,454,039.89
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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.