Finding the Fourth Proportional to 393,677,269.20, 590,515,903.80 and 106,462,933.20
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Solution
The fourth proportional to 393,677,269.20, 590,515,903.80 and 106,462,933.20 is: 159,694,399.80
Step by Step Solution
- Step 1: Write the proportion equation
393,677,269.20 : 590,515,903.80 = 106,462,933.20 : x - Step 2: Convert to fraction form
393,677,269.20/590,515,903.80 = 106,462,933.20/x - Step 3: Cross multiply
393,677,269.20x = 590,515,903.80 × 106,462,933.20 - Step 4: Simplify right side
393,677,269.20x = 62,868,055,219,797,024 - Step 5: Solve for x
x = 62,868,055,219,797,024/393,677,269.20 - Step 6: Final answer
x = 159,694,399.80
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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.