Finding the Fourth Proportional to 77,025,962.53, 106,307,236.85 and 48,770,961.74
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Solution
The fourth proportional to 77,025,962.53, 106,307,236.85 and 48,770,961.74 is: 67,311,150.82
Step by Step Solution
- Step 1: Write the proportion equation
77,025,962.53 : 106,307,236.85 = 48,770,961.74 : x - Step 2: Convert to fraction form
77,025,962.53/106,307,236.85 = 48,770,961.74/x - Step 3: Cross multiply
77,025,962.53x = 106,307,236.85 × 48,770,961.74 - Step 4: Simplify right side
77,025,962.53x = 5,184,706,180,856,776 - Step 5: Solve for x
x = 5,184,706,180,856,776/77,025,962.53 - Step 6: Final answer
x = 67,311,150.82
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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.