Finding the Fourth Proportional to 13,121,885.94, 18,087,582.42 and 8,984,762.70
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Solution
The fourth proportional to 13,121,885.94, 18,087,582.42 and 8,984,762.70 is: 12,384,853.56
Step by Step Solution
- Step 1: Write the proportion equation
13,121,885.94 : 18,087,582.42 = 8,984,762.70 : x - Step 2: Convert to fraction form
13,121,885.94/18,087,582.42 = 8,984,762.70/x - Step 3: Cross multiply
13,121,885.94x = 18,087,582.42 × 8,984,762.70 - Step 4: Simplify right side
13,121,885.94x = 162,512,635,860,391.75 - Step 5: Solve for x
x = 162,512,635,860,391.75/13,121,885.94 - Step 6: Final answer
x = 12,384,853.56
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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.