Finding the Fourth Proportional to 7,021,323.68, 9,689,462.49 and 3,923,898.77
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Solution
The fourth proportional to 7,021,323.68, 9,689,462.49 and 3,923,898.77 is: 5,415,000.32
Step by Step Solution
- Step 1: Write the proportion equation
7,021,323.68 : 9,689,462.49 = 3,923,898.77 : x - Step 2: Convert to fraction form
7,021,323.68/9,689,462.49 = 3,923,898.77/x - Step 3: Cross multiply
7,021,323.68x = 9,689,462.49 × 3,923,898.77 - Step 4: Simplify right side
7,021,323.68x = 38,020,469,946,472.14 - Step 5: Solve for x
x = 38,020,469,946,472.14/7,021,323.68 - Step 6: Final answer
x = 5,415,000.32
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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.