Finding the Fourth Proportional to 21,673,387.20, 29,908,125.27 and 12,379,132.14
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Solution
The fourth proportional to 21,673,387.20, 29,908,125.27 and 12,379,132.14 is: 17,082,546.04
Step by Step Solution
- Step 1: Write the proportion equation
21,673,387.20 : 29,908,125.27 = 12,379,132.14 : x - Step 2: Convert to fraction form
21,673,387.20/29,908,125.27 = 12,379,132.14/x - Step 3: Cross multiply
21,673,387.20x = 29,908,125.27 × 12,379,132.14 - Step 4: Simplify right side
21,673,387.20x = 370,236,634,777,003.19 - Step 5: Solve for x
x = 370,236,634,777,003.19/21,673,387.20 - Step 6: Final answer
x = 17,082,546.04
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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.