Finding the Fourth Proportional to 312,322,455.08, 431,005,028.86 and 173,102,204.96
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Solution
The fourth proportional to 312,322,455.08, 431,005,028.86 and 173,102,204.96 is: 238,881,065.48
Step by Step Solution
- Step 1: Write the proportion equation
312,322,455.08 : 431,005,028.86 = 173,102,204.96 : x - Step 2: Convert to fraction form
312,322,455.08/431,005,028.86 = 173,102,204.96/x - Step 3: Cross multiply
312,322,455.08x = 431,005,028.86 × 173,102,204.96 - Step 4: Simplify right side
312,322,455.08x = 74,607,920,841,926,656 - Step 5: Solve for x
x = 74,607,920,841,926,656/312,322,455.08 - Step 6: Final answer
x = 238,881,065.48
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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.