Finding the Fourth Proportional to 38,600,536.20, 53,269,351.98 and 20,959,428.84
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Solution
The fourth proportional to 38,600,536.20, 53,269,351.98 and 20,959,428.84 is: 28,924,344.12
Step by Step Solution
- Step 1: Write the proportion equation
38,600,536.20 : 53,269,351.98 = 20,959,428.84 : x - Step 2: Convert to fraction form
38,600,536.20/53,269,351.98 = 20,959,428.84/x - Step 3: Cross multiply
38,600,536.20x = 53,269,351.98 × 20,959,428.84 - Step 4: Simplify right side
38,600,536.20x = 1,116,495,192,177,723 - Step 5: Solve for x
x = 1,116,495,192,177,723/38,600,536.20 - Step 6: Final answer
x = 28,924,344.12
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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.