Finding the Fourth Proportional to 30,220,992.18, 41,699,863.17 and 16,988,406.48
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Solution
The fourth proportional to 30,220,992.18, 41,699,863.17 and 16,988,406.48 is: 23,441,130.64
Step by Step Solution
- Step 1: Write the proportion equation
30,220,992.18 : 41,699,863.17 = 16,988,406.48 : x - Step 2: Convert to fraction form
30,220,992.18/41,699,863.17 = 16,988,406.48/x - Step 3: Cross multiply
30,220,992.18x = 41,699,863.17 × 16,988,406.48 - Step 4: Simplify right side
30,220,992.18x = 708,414,225,692,341.38 - Step 5: Solve for x
x = 708,414,225,692,341.38/30,220,992.18 - Step 6: Final answer
x = 23,441,130.64
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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.