Finding the Fourth Proportional to 21,984,557.68, 30,339,176.70 and 12,194,683.84
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Solution
The fourth proportional to 21,984,557.68, 30,339,176.70 and 12,194,683.84 is: 16,828,933.89
Step by Step Solution
- Step 1: Write the proportion equation
21,984,557.68 : 30,339,176.70 = 12,194,683.84 : x - Step 2: Convert to fraction form
21,984,557.68/30,339,176.70 = 12,194,683.84/x - Step 3: Cross multiply
21,984,557.68x = 30,339,176.70 × 12,194,683.84 - Step 4: Simplify right side
21,984,557.68x = 369,976,667,822,394.50 - Step 5: Solve for x
x = 369,976,667,822,394.50/21,984,557.68 - Step 6: Final answer
x = 16,828,933.89
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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.