Finding the Fourth Proportional to 38,647,035.40, 53,332,311.11 and 21,243,006.65
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Solution
The fourth proportional to 38,647,035.40, 53,332,311.11 and 21,243,006.65 is: 29,315,020.61
Step by Step Solution
- Step 1: Write the proportion equation
38,647,035.40 : 53,332,311.11 = 21,243,006.65 : x - Step 2: Convert to fraction form
38,647,035.40/53,332,311.11 = 21,243,006.65/x - Step 3: Cross multiply
38,647,035.40x = 53,332,311.11 × 21,243,006.65 - Step 4: Simplify right side
38,647,035.40x = 1,132,938,639,196,722.25 - Step 5: Solve for x
x = 1,132,938,639,196,722.25/38,647,035.40 - Step 6: Final answer
x = 29,315,020.61
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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.