Finding the Fourth Proportional to 28,610,622.11, 39,481,456.64 and 16,221,548.99
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Solution
The fourth proportional to 28,610,622.11, 39,481,456.64 and 16,221,548.99 is: 22,385,056.17
Step by Step Solution
- Step 1: Write the proportion equation
28,610,622.11 : 39,481,456.64 = 16,221,548.99 : x - Step 2: Convert to fraction form
28,610,622.11/39,481,456.64 = 16,221,548.99/x - Step 3: Cross multiply
28,610,622.11x = 39,481,456.64 × 16,221,548.99 - Step 4: Simplify right side
28,610,622.11x = 640,450,382,803,805.75 - Step 5: Solve for x
x = 640,450,382,803,805.75/28,610,622.11 - Step 6: Final answer
x = 22,385,056.17
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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.