Finding the Fourth Proportional to 5,713,521.76, 7,884,638.40 and 3,135,245.68
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Solution
The fourth proportional to 5,713,521.76, 7,884,638.40 and 3,135,245.68 is: 4,326,627.17
Step by Step Solution
- Step 1: Write the proportion equation
5,713,521.76 : 7,884,638.40 = 3,135,245.68 : x - Step 2: Convert to fraction form
5,713,521.76/7,884,638.40 = 3,135,245.68/x - Step 3: Cross multiply
5,713,521.76x = 7,884,638.40 × 3,135,245.68 - Step 4: Simplify right side
5,713,521.76x = 24,720,278,481,962.11 - Step 5: Solve for x
x = 24,720,278,481,962.11/5,713,521.76 - Step 6: Final answer
x = 4,326,627.17
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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.