Finding the Fourth Proportional to 309,729,733.17, 464,599,526.16 and 172,428,036.09
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Solution
The fourth proportional to 309,729,733.17, 464,599,526.16 and 172,428,036.09 is: 258,644,796.69
Step by Step Solution
- Step 1: Write the proportion equation
309,729,733.17 : 464,599,526.16 = 172,428,036.09 : x - Step 2: Convert to fraction form
309,729,733.17/464,599,526.16 = 172,428,036.09/x - Step 3: Cross multiply
309,729,733.17x = 464,599,526.16 × 172,428,036.09 - Step 4: Simplify right side
309,729,733.17x = 80,109,983,864,113,392 - Step 5: Solve for x
x = 80,109,983,864,113,392/309,729,733.17 - Step 6: Final answer
x = 258,644,796.69
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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.