Finding the Fourth Proportional to 309,729,734.16, 464,599,527.66 and 172,428,037.08
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Solution
The fourth proportional to 309,729,734.16, 464,599,527.66 and 172,428,037.08 is: 258,644,798.18
Step by Step Solution
- Step 1: Write the proportion equation
309,729,734.16 : 464,599,527.66 = 172,428,037.08 : x - Step 2: Convert to fraction form
309,729,734.16/464,599,527.66 = 172,428,037.08/x - Step 3: Cross multiply
309,729,734.16x = 464,599,527.66 × 172,428,037.08 - Step 4: Simplify right side
309,729,734.16x = 80,109,984,582,708,976 - Step 5: Solve for x
x = 80,109,984,582,708,976/309,729,734.16 - Step 6: Final answer
x = 258,644,798.18
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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.