Finding the Fourth Proportional to 29,379,234.48, 40,500,612.88 and 20,531,215.70
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Solution
The fourth proportional to 29,379,234.48, 40,500,612.88 and 20,531,215.70 is: 28,303,215.99
Step by Step Solution
- Step 1: Write the proportion equation
29,379,234.48 : 40,500,612.88 = 20,531,215.70 : x - Step 2: Convert to fraction form
29,379,234.48/40,500,612.88 = 20,531,215.70/x - Step 3: Cross multiply
29,379,234.48x = 40,500,612.88 × 20,531,215.70 - Step 4: Simplify right side
29,379,234.48x = 831,526,819,021,478.25 - Step 5: Solve for x
x = 831,526,819,021,478.25/29,379,234.48 - Step 6: Final answer
x = 28,303,215.99
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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.