Finding the Fourth Proportional to 7,021,021.93, 9,689,023.44 and 3,923,545.31
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Solution
The fourth proportional to 7,021,021.93, 9,689,023.44 and 3,923,545.31 is: 5,414,499.88
Step by Step Solution
- Step 1: Write the proportion equation
7,021,021.93 : 9,689,023.44 = 3,923,545.31 : x - Step 2: Convert to fraction form
7,021,021.93/9,689,023.44 = 3,923,545.31/x - Step 3: Cross multiply
7,021,021.93x = 9,689,023.44 × 3,923,545.31 - Step 4: Simplify right side
7,021,021.93x = 38,015,322,420,577.76 - Step 5: Solve for x
x = 38,015,322,420,577.76/7,021,021.93 - Step 6: Final answer
x = 5,414,499.88
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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.