Finding the Fourth Proportional to 19,699,113.88, 27,192,031.50 and 11,858,990.68
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Solution
The fourth proportional to 19,699,113.88, 27,192,031.50 and 11,858,990.68 is: 16,369,774.30
Step by Step Solution
- Step 1: Write the proportion equation
19,699,113.88 : 27,192,031.50 = 11,858,990.68 : x - Step 2: Convert to fraction form
19,699,113.88/27,192,031.50 = 11,858,990.68/x - Step 3: Cross multiply
19,699,113.88x = 27,192,031.50 × 11,858,990.68 - Step 4: Simplify right side
19,699,113.88x = 322,470,048,128,766.44 - Step 5: Solve for x
x = 322,470,048,128,766.44/19,699,113.88 - Step 6: Final answer
x = 16,369,774.30
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.