Finding the Fourth Proportional to 7,156,609.02, 9,876,163.40 and 3,893,447.11
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Solution
The fourth proportional to 7,156,609.02, 9,876,163.40 and 3,893,447.11 is: 5,372,980.37
Step by Step Solution
- Step 1: Write the proportion equation
7,156,609.02 : 9,876,163.40 = 3,893,447.11 : x - Step 2: Convert to fraction form
7,156,609.02/9,876,163.40 = 3,893,447.11/x - Step 3: Cross multiply
7,156,609.02x = 9,876,163.40 × 3,893,447.11 - Step 4: Simplify right side
7,156,609.02x = 38,452,319,778,769.72 - Step 5: Solve for x
x = 38,452,319,778,769.72/7,156,609.02 - Step 6: Final answer
x = 5,372,980.37
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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.