Finding the Fourth Proportional to 6,679,485.19, 9,211,993.29 and 5,134,489.96
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Solution
The fourth proportional to 6,679,485.19, 9,211,993.29 and 5,134,489.96 is: 7,081,217.45
Step by Step Solution
- Step 1: Write the proportion equation
6,679,485.19 : 9,211,993.29 = 5,134,489.96 : x - Step 2: Convert to fraction form
6,679,485.19/9,211,993.29 = 5,134,489.96/x - Step 3: Cross multiply
6,679,485.19x = 9,211,993.29 × 5,134,489.96 - Step 4: Simplify right side
6,679,485.19x = 47,298,887,059,092.37 - Step 5: Solve for x
x = 47,298,887,059,092.37/6,679,485.19 - Step 6: Final answer
x = 7,081,217.45
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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.