Finding the Fourth Proportional to 21,531,034.14, 29,712,164.85 and 12,239,619.18
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Solution
The fourth proportional to 21,531,034.14, 29,712,164.85 and 12,239,619.18 is: 16,890,298.00
Step by Step Solution
- Step 1: Write the proportion equation
21,531,034.14 : 29,712,164.85 = 12,239,619.18 : x - Step 2: Convert to fraction form
21,531,034.14/29,712,164.85 = 12,239,619.18/x - Step 3: Cross multiply
21,531,034.14x = 29,712,164.85 × 12,239,619.18 - Step 4: Simplify right side
21,531,034.14x = 363,665,582,777,381.81 - Step 5: Solve for x
x = 363,665,582,777,381.81/21,531,034.14 - Step 6: Final answer
x = 16,890,298.00
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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.