Finding the Fourth Proportional to 731,228,926.70, 1,009,097,874.80 and 396,701,449.14
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Solution
The fourth proportional to 731,228,926.70, 1,009,097,874.80 and 396,701,449.14 is: 547,449,060.95
Step by Step Solution
- Step 1: Write the proportion equation
731,228,926.70 : 1,009,097,874.80 = 396,701,449.14 : x - Step 2: Convert to fraction form
731,228,926.70/1,009,097,874.80 = 396,701,449.14/x - Step 3: Cross multiply
731,228,926.70x = 1,009,097,874.80 × 396,701,449.14 - Step 4: Simplify right side
731,228,926.70x = 400,310,589,255,270,720 - Step 5: Solve for x
x = 400,310,589,255,270,720/731,228,926.70 - Step 6: Final answer
x = 547,449,060.95
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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.