Finding the Fourth Proportional to 13,860,984.84, 19,120,480.41 and 8,059,125.33
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Solution
The fourth proportional to 13,860,984.84, 19,120,480.41 and 8,059,125.33 is: 11,117,128.38
Step by Step Solution
- Step 1: Write the proportion equation
13,860,984.84 : 19,120,480.41 = 8,059,125.33 : x - Step 2: Convert to fraction form
13,860,984.84/19,120,480.41 = 8,059,125.33/x - Step 3: Cross multiply
13,860,984.84x = 19,120,480.41 × 8,059,125.33 - Step 4: Simplify right side
13,860,984.84x = 154,094,347,993,999.78 - Step 5: Solve for x
x = 154,094,347,993,999.78/13,860,984.84 - Step 6: Final answer
x = 11,117,128.38
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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.