Finding the Fourth Proportional to 499,476,571.62, 689,230,518.97 and 298,493,432.91
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Solution
The fourth proportional to 499,476,571.62, 689,230,518.97 and 298,493,432.91 is: 411,892,760.07
Step by Step Solution
- Step 1: Write the proportion equation
499,476,571.62 : 689,230,518.97 = 298,493,432.91 : x - Step 2: Convert to fraction form
499,476,571.62/689,230,518.97 = 298,493,432.91/x - Step 3: Cross multiply
499,476,571.62x = 689,230,518.97 × 298,493,432.91 - Step 4: Simplify right side
499,476,571.62x = 205,730,783,674,673,024 - Step 5: Solve for x
x = 205,730,783,674,673,024/499,476,571.62 - Step 6: Final answer
x = 411,892,760.07
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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.