Finding the Fourth Proportional to 6,921,235.22, 9,551,013.70 and 3,980,830.26
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Solution
The fourth proportional to 6,921,235.22, 9,551,013.70 and 3,980,830.26 is: 5,493,378.44
Step by Step Solution
- Step 1: Write the proportion equation
6,921,235.22 : 9,551,013.70 = 3,980,830.26 : x - Step 2: Convert to fraction form
6,921,235.22/9,551,013.70 = 3,980,830.26/x - Step 3: Cross multiply
6,921,235.22x = 9,551,013.70 × 3,980,830.26 - Step 4: Simplify right side
6,921,235.22x = 38,020,964,350,634.55 - Step 5: Solve for x
x = 38,020,964,350,634.55/6,921,235.22 - Step 6: Final answer
x = 5,493,378.44
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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.