Finding the Fourth Proportional to 19,677,143.88, 29,474,381.52 and 12,484,975.68
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Solution
The fourth proportional to 19,677,143.88, 29,474,381.52 and 12,484,975.68 is: 18,701,237.27
Step by Step Solution
- Step 1: Write the proportion equation
19,677,143.88 : 29,474,381.52 = 12,484,975.68 : x - Step 2: Convert to fraction form
19,677,143.88/29,474,381.52 = 12,484,975.68/x - Step 3: Cross multiply
19,677,143.88x = 29,474,381.52 × 12,484,975.68 - Step 4: Simplify right side
19,677,143.88x = 367,986,936,460,241.44 - Step 5: Solve for x
x = 367,986,936,460,241.44/19,677,143.88 - Step 6: Final answer
x = 18,701,237.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.