Finding the Fourth Proportional to 12,915,504.84, 19,373,283.92 and 12,126,314.96
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Solution
The fourth proportional to 12,915,504.84, 19,373,283.92 and 12,126,314.96 is: 18,189,497.47
Step by Step Solution
- Step 1: Write the proportion equation
12,915,504.84 : 19,373,283.92 = 12,126,314.96 : x - Step 2: Convert to fraction form
12,915,504.84/19,373,283.92 = 12,126,314.96/x - Step 3: Cross multiply
12,915,504.84x = 19,373,283.92 × 12,126,314.96 - Step 4: Simplify right side
12,915,504.84x = 234,926,542,623,423.47 - Step 5: Solve for x
x = 234,926,542,623,423.47/12,915,504.84 - Step 6: Final answer
x = 18,189,497.47
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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.