Finding the Fourth Proportional to 86,523,126.84, 119,274,705.90 and 65,860,584.12
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Solution
The fourth proportional to 86,523,126.84, 119,274,705.90 and 65,860,584.12 is: 90,790,775.69
Step by Step Solution
- Step 1: Write the proportion equation
86,523,126.84 : 119,274,705.90 = 65,860,584.12 : x - Step 2: Convert to fraction form
86,523,126.84/119,274,705.90 = 65,860,584.12/x - Step 3: Cross multiply
86,523,126.84x = 119,274,705.90 × 65,860,584.12 - Step 4: Simplify right side
86,523,126.84x = 7,855,501,801,315,210 - Step 5: Solve for x
x = 7,855,501,801,315,210/86,523,126.84 - Step 6: Final answer
x = 90,790,775.69
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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.