Finding the Fourth Proportional to 6,653,669.99, 9,980,868.20 and 2,104,379.21
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Solution
The fourth proportional to 6,653,669.99, 9,980,868.20 and 2,104,379.21 is: 3,156,683.68
Step by Step Solution
- Step 1: Write the proportion equation
6,653,669.99 : 9,980,868.20 = 2,104,379.21 : x - Step 2: Convert to fraction form
6,653,669.99/9,980,868.20 = 2,104,379.21/x - Step 3: Cross multiply
6,653,669.99x = 9,980,868.20 × 2,104,379.21 - Step 4: Simplify right side
6,653,669.99x = 21,003,531,477,403.89 - Step 5: Solve for x
x = 21,003,531,477,403.89/6,653,669.99 - Step 6: Final answer
x = 3,156,683.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.