Finding the Fourth Proportional to 402,411,051.20, 603,616,576.80 and 351,392,715.20
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Solution
The fourth proportional to 402,411,051.20, 603,616,576.80 and 351,392,715.20 is: 527,089,072.80
Step by Step Solution
- Step 1: Write the proportion equation
402,411,051.20 : 603,616,576.80 = 351,392,715.20 : x - Step 2: Convert to fraction form
402,411,051.20/603,616,576.80 = 351,392,715.20/x - Step 3: Cross multiply
402,411,051.20x = 603,616,576.80 × 351,392,715.20 - Step 4: Simplify right side
402,411,051.20x = 212,106,467,861,481,312 - Step 5: Solve for x
x = 212,106,467,861,481,312/402,411,051.20 - Step 6: Final answer
x = 527,089,072.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.